Home / 1,158.24-1,737.12-1,143.84

Finding the Fourth Proportional to 1,158.24, 1,737.12 and 1,143.84

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Solution

The fourth proportional to 1,158.24, 1,737.12 and 1,143.84 is: 1,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.24 : 1,737.12 = 1,143.84 : x
  2. Step 2: Convert to fraction form
    1,158.24/1,737.12 = 1,143.84/x
  3. Step 3: Cross multiply
    1,158.24x = 1,737.12 × 1,143.84
  4. Step 4: Simplify right side
    1,158.24x = 1,986,987.34
  5. Step 5: Solve for x
    x = 1,986,987.34/1,158.24
  6. Step 6: Final answer
    x = 1,715.52

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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.