Home / 1,151.20-1,727.88-1,070.74

Finding the Fourth Proportional to 1,151.20, 1,727.88 and 1,070.74

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Solution

The fourth proportional to 1,151.20, 1,727.88 and 1,070.74 is: 1,607.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.20 : 1,727.88 = 1,070.74 : x
  2. Step 2: Convert to fraction form
    1,151.20/1,727.88 = 1,070.74/x
  3. Step 3: Cross multiply
    1,151.20x = 1,727.88 × 1,070.74
  4. Step 4: Simplify right side
    1,151.20x = 1,850,110.23
  5. Step 5: Solve for x
    x = 1,850,110.23/1,151.20
  6. Step 6: Final answer
    x = 1,607.11

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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.