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Finding the Fourth Proportional to 6,520.56, 9,780.72 and 3,060.24

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Solution

The fourth proportional to 6,520.56, 9,780.72 and 3,060.24 is: 4,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.56 : 9,780.72 = 3,060.24 : x
  2. Step 2: Convert to fraction form
    6,520.56/9,780.72 = 3,060.24/x
  3. Step 3: Cross multiply
    6,520.56x = 9,780.72 × 3,060.24
  4. Step 4: Simplify right side
    6,520.56x = 29,931,350.57
  5. Step 5: Solve for x
    x = 29,931,350.57/6,520.56
  6. Step 6: Final answer
    x = 4,590.30

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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.