Home / 4,087.56-5,640.75-2,319.18

Finding the Fourth Proportional to 4,087.56, 5,640.75 and 2,319.18

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Solution

The fourth proportional to 4,087.56, 5,640.75 and 2,319.18 is: 3,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.56 : 5,640.75 = 2,319.18 : x
  2. Step 2: Convert to fraction form
    4,087.56/5,640.75 = 2,319.18/x
  3. Step 3: Cross multiply
    4,087.56x = 5,640.75 × 2,319.18
  4. Step 4: Simplify right side
    4,087.56x = 13,081,914.59
  5. Step 5: Solve for x
    x = 13,081,914.59/4,087.56
  6. Step 6: Final answer
    x = 3,200.42

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Half scale
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Double scale
Find fourth proportional to 4,088.56, 5,642.13 and 2,320.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.