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Finding the Fourth Proportional to 7,640.59, 10,544.64 and 4,497.40

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Solution

The fourth proportional to 7,640.59, 10,544.64 and 4,497.40 is: 6,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.59 : 10,544.64 = 4,497.40 : x
  2. Step 2: Convert to fraction form
    7,640.59/10,544.64 = 4,497.40/x
  3. Step 3: Cross multiply
    7,640.59x = 10,544.64 × 4,497.40
  4. Step 4: Simplify right side
    7,640.59x = 47,423,463.94
  5. Step 5: Solve for x
    x = 47,423,463.94/7,640.59
  6. Step 6: Final answer
    x = 6,206.78

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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.