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Finding the Fourth Proportional to 5,000.64, 7,500.08 and 1,490.56

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Solution

The fourth proportional to 5,000.64, 7,500.08 and 1,490.56 is: 2,235.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.64 : 7,500.08 = 1,490.56 : x
  2. Step 2: Convert to fraction form
    5,000.64/7,500.08 = 1,490.56/x
  3. Step 3: Cross multiply
    5,000.64x = 7,500.08 × 1,490.56
  4. Step 4: Simplify right side
    5,000.64x = 11,179,319.24
  5. Step 5: Solve for x
    x = 11,179,319.24/5,000.64
  6. Step 6: Final answer
    x = 2,235.58

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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.