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Finding the Fourth Proportional to 2,487.04, 3,730.56 and 755.71

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Solution

The fourth proportional to 2,487.04, 3,730.56 and 755.71 is: 1,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.04 : 3,730.56 = 755.71 : x
  2. Step 2: Convert to fraction form
    2,487.04/3,730.56 = 755.71/x
  3. Step 3: Cross multiply
    2,487.04x = 3,730.56 × 755.71
  4. Step 4: Simplify right side
    2,487.04x = 2,819,221.50
  5. Step 5: Solve for x
    x = 2,819,221.50/2,487.04
  6. Step 6: Final answer
    x = 1,133.57

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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.