Home / 4,140.69-5,714.16-2,277.69

Finding the Fourth Proportional to 4,140.69, 5,714.16 and 2,277.69

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Solution

The fourth proportional to 4,140.69, 5,714.16 and 2,277.69 is: 3,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.69 : 5,714.16 = 2,277.69 : x
  2. Step 2: Convert to fraction form
    4,140.69/5,714.16 = 2,277.69/x
  3. Step 3: Cross multiply
    4,140.69x = 5,714.16 × 2,277.69
  4. Step 4: Simplify right side
    4,140.69x = 13,015,073.70
  5. Step 5: Solve for x
    x = 13,015,073.70/4,140.69
  6. Step 6: Final answer
    x = 3,143.21

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Half scale
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Double scale
Find fourth proportional to 4,141.69, 5,715.54 and 2,278.69
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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.