Home / 4,812.38-6,639.98-2,715.74

Finding the Fourth Proportional to 4,812.38, 6,639.98 and 2,715.74

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Solution

The fourth proportional to 4,812.38, 6,639.98 and 2,715.74 is: 3,747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.38 : 6,639.98 = 2,715.74 : x
  2. Step 2: Convert to fraction form
    4,812.38/6,639.98 = 2,715.74/x
  3. Step 3: Cross multiply
    4,812.38x = 6,639.98 × 2,715.74
  4. Step 4: Simplify right side
    4,812.38x = 18,032,459.29
  5. Step 5: Solve for x
    x = 18,032,459.29/4,812.38
  6. Step 6: Final answer
    x = 3,747.10

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Half scale
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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.