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Finding the Fourth Proportional to 5,000.40, 7,490.70 and 4,384.80

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Solution

The fourth proportional to 5,000.40, 7,490.70 and 4,384.80 is: 6,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.40 : 7,490.70 = 4,384.80 : x
  2. Step 2: Convert to fraction form
    5,000.40/7,490.70 = 4,384.80/x
  3. Step 3: Cross multiply
    5,000.40x = 7,490.70 × 4,384.80
  4. Step 4: Simplify right side
    5,000.40x = 32,845,221.36
  5. Step 5: Solve for x
    x = 32,845,221.36/5,000.40
  6. Step 6: Final answer
    x = 6,568.52

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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.