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Finding the Fourth Proportional to 5,605.50, 8,407.17 and 1,907.70

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Solution

The fourth proportional to 5,605.50, 8,407.17 and 1,907.70 is: 2,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.50 : 8,407.17 = 1,907.70 : x
  2. Step 2: Convert to fraction form
    5,605.50/8,407.17 = 1,907.70/x
  3. Step 3: Cross multiply
    5,605.50x = 8,407.17 × 1,907.70
  4. Step 4: Simplify right side
    5,605.50x = 16,038,358.21
  5. Step 5: Solve for x
    x = 16,038,358.21/5,605.50
  6. Step 6: Final answer
    x = 2,861.18

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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.