Home / 5,605.10-8,407.57-1,909.90

Finding the Fourth Proportional to 5,605.10, 8,407.57 and 1,909.90

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Solution

The fourth proportional to 5,605.10, 8,407.57 and 1,909.90 is: 2,864.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.10 : 8,407.57 = 1,909.90 : x
  2. Step 2: Convert to fraction form
    5,605.10/8,407.57 = 1,909.90/x
  3. Step 3: Cross multiply
    5,605.10x = 8,407.57 × 1,909.90
  4. Step 4: Simplify right side
    5,605.10x = 16,057,608.39
  5. Step 5: Solve for x
    x = 16,057,608.39/5,605.10
  6. Step 6: Final answer
    x = 2,864.82

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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.