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Finding the Fourth Proportional to 1,259.80, 1,888.11 and 565.73

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Solution

The fourth proportional to 1,259.80, 1,888.11 and 565.73 is: 847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.80 : 1,888.11 = 565.73 : x
  2. Step 2: Convert to fraction form
    1,259.80/1,888.11 = 565.73/x
  3. Step 3: Cross multiply
    1,259.80x = 1,888.11 × 565.73
  4. Step 4: Simplify right side
    1,259.80x = 1,068,168.73
  5. Step 5: Solve for x
    x = 1,068,168.73/1,259.80
  6. Step 6: Final answer
    x = 847.89

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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.