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Finding the Fourth Proportional to 6,520.10, 9,780.16 and 1,589.74

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Solution

The fourth proportional to 6,520.10, 9,780.16 and 1,589.74 is: 2,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.10 : 9,780.16 = 1,589.74 : x
  2. Step 2: Convert to fraction form
    6,520.10/9,780.16 = 1,589.74/x
  3. Step 3: Cross multiply
    6,520.10x = 9,780.16 × 1,589.74
  4. Step 4: Simplify right side
    6,520.10x = 15,547,911.56
  5. Step 5: Solve for x
    x = 15,547,911.56/6,520.10
  6. Step 6: Final answer
    x = 2,384.61

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Similar ratio
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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.