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Finding the Fourth Proportional to 4,641.28, 6,405.04 and 2,545.28

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Solution

The fourth proportional to 4,641.28, 6,405.04 and 2,545.28 is: 3,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.28 : 6,405.04 = 2,545.28 : x
  2. Step 2: Convert to fraction form
    4,641.28/6,405.04 = 2,545.28/x
  3. Step 3: Cross multiply
    4,641.28x = 6,405.04 × 2,545.28
  4. Step 4: Simplify right side
    4,641.28x = 16,302,620.21
  5. Step 5: Solve for x
    x = 16,302,620.21/4,641.28
  6. Step 6: Final answer
    x = 3,512.53

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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.