Home / 1,341.28-1,849.12-1,154.56

Finding the Fourth Proportional to 1,341.28, 1,849.12 and 1,154.56

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Solution

The fourth proportional to 1,341.28, 1,849.12 and 1,154.56 is: 1,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.28 : 1,849.12 = 1,154.56 : x
  2. Step 2: Convert to fraction form
    1,341.28/1,849.12 = 1,154.56/x
  3. Step 3: Cross multiply
    1,341.28x = 1,849.12 × 1,154.56
  4. Step 4: Simplify right side
    1,341.28x = 2,134,919.99
  5. Step 5: Solve for x
    x = 2,134,919.99/1,341.28
  6. Step 6: Final answer
    x = 1,591.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.