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Finding the Fourth Proportional to 5,010.60, 7,515.90 and 4,305.90

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Solution

The fourth proportional to 5,010.60, 7,515.90 and 4,305.90 is: 6,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.60 : 7,515.90 = 4,305.90 : x
  2. Step 2: Convert to fraction form
    5,010.60/7,515.90 = 4,305.90/x
  3. Step 3: Cross multiply
    5,010.60x = 7,515.90 × 4,305.90
  4. Step 4: Simplify right side
    5,010.60x = 32,362,713.81
  5. Step 5: Solve for x
    x = 32,362,713.81/5,010.60
  6. Step 6: Final answer
    x = 6,458.85

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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.