Home / 5,160.96-7,119.36-3,586.32

Finding the Fourth Proportional to 5,160.96, 7,119.36 and 3,586.32

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Solution

The fourth proportional to 5,160.96, 7,119.36 and 3,586.32 is: 4,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.96 : 7,119.36 = 3,586.32 : x
  2. Step 2: Convert to fraction form
    5,160.96/7,119.36 = 3,586.32/x
  3. Step 3: Cross multiply
    5,160.96x = 7,119.36 × 3,586.32
  4. Step 4: Simplify right side
    5,160.96x = 25,532,303.16
  5. Step 5: Solve for x
    x = 25,532,303.16/5,160.96
  6. Step 6: Final answer
    x = 4,947.20

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Half scale
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Double scale
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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.