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Finding the Fourth Proportional to 5,870.45, 8,805.68 and 1,487.91

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Solution

The fourth proportional to 5,870.45, 8,805.68 and 1,487.91 is: 2,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.45 : 8,805.68 = 1,487.91 : x
  2. Step 2: Convert to fraction form
    5,870.45/8,805.68 = 1,487.91/x
  3. Step 3: Cross multiply
    5,870.45x = 8,805.68 × 1,487.91
  4. Step 4: Simplify right side
    5,870.45x = 13,102,059.33
  5. Step 5: Solve for x
    x = 13,102,059.33/5,870.45
  6. Step 6: Final answer
    x = 2,231.87

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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.