Home / 1,711.08-2,561.76-1,125.45

Finding the Fourth Proportional to 1,711.08, 2,561.76 and 1,125.45

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Solution

The fourth proportional to 1,711.08, 2,561.76 and 1,125.45 is: 1,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.08 : 2,561.76 = 1,125.45 : x
  2. Step 2: Convert to fraction form
    1,711.08/2,561.76 = 1,125.45/x
  3. Step 3: Cross multiply
    1,711.08x = 2,561.76 × 1,125.45
  4. Step 4: Simplify right side
    1,711.08x = 2,883,132.79
  5. Step 5: Solve for x
    x = 2,883,132.79/1,711.08
  6. Step 6: Final answer
    x = 1,684.98

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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.