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Finding the Fourth Proportional to 4,476.80, 6,715.13 and 1,555.03

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Solution

The fourth proportional to 4,476.80, 6,715.13 and 1,555.03 is: 2,332.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,476.80 : 6,715.13 = 1,555.03 : x
  2. Step 2: Convert to fraction form
    4,476.80/6,715.13 = 1,555.03/x
  3. Step 3: Cross multiply
    4,476.80x = 6,715.13 × 1,555.03
  4. Step 4: Simplify right side
    4,476.80x = 10,442,233.60
  5. Step 5: Solve for x
    x = 10,442,233.60/4,476.80
  6. Step 6: Final answer
    x = 2,332.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.