Home / 7,471.29-10,312.99-4,640.85

Finding the Fourth Proportional to 7,471.29, 10,312.99 and 4,640.85

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Solution

The fourth proportional to 7,471.29, 10,312.99 and 4,640.85 is: 6,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,471.29 : 10,312.99 = 4,640.85 : x
  2. Step 2: Convert to fraction form
    7,471.29/10,312.99 = 4,640.85/x
  3. Step 3: Cross multiply
    7,471.29x = 10,312.99 × 4,640.85
  4. Step 4: Simplify right side
    7,471.29x = 47,861,028.04
  5. Step 5: Solve for x
    x = 47,861,028.04/7,471.29
  6. Step 6: Final answer
    x = 6,405.99

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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.