Home / 1,972.95-2,958.45-1,151.47

Finding the Fourth Proportional to 1,972.95, 2,958.45 and 1,151.47

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Solution

The fourth proportional to 1,972.95, 2,958.45 and 1,151.47 is: 1,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.95 : 2,958.45 = 1,151.47 : x
  2. Step 2: Convert to fraction form
    1,972.95/2,958.45 = 1,151.47/x
  3. Step 3: Cross multiply
    1,972.95x = 2,958.45 × 1,151.47
  4. Step 4: Simplify right side
    1,972.95x = 3,406,566.42
  5. Step 5: Solve for x
    x = 3,406,566.42/1,972.95
  6. Step 6: Final answer
    x = 1,726.64

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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.