Home / 2,126.39-3,189.53-1,158.63

Finding the Fourth Proportional to 2,126.39, 3,189.53 and 1,158.63

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Solution

The fourth proportional to 2,126.39, 3,189.53 and 1,158.63 is: 1,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.39 : 3,189.53 = 1,158.63 : x
  2. Step 2: Convert to fraction form
    2,126.39/3,189.53 = 1,158.63/x
  3. Step 3: Cross multiply
    2,126.39x = 3,189.53 × 1,158.63
  4. Step 4: Simplify right side
    2,126.39x = 3,695,479.35
  5. Step 5: Solve for x
    x = 3,695,479.35/2,126.39
  6. Step 6: Final answer
    x = 1,737.92

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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.