Home / 1,937.28-2,661.78-1,543.62

Finding the Fourth Proportional to 1,937.28, 2,661.78 and 1,543.62

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Solution

The fourth proportional to 1,937.28, 2,661.78 and 1,543.62 is: 2,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.28 : 2,661.78 = 1,543.62 : x
  2. Step 2: Convert to fraction form
    1,937.28/2,661.78 = 1,543.62/x
  3. Step 3: Cross multiply
    1,937.28x = 2,661.78 × 1,543.62
  4. Step 4: Simplify right side
    1,937.28x = 4,108,776.84
  5. Step 5: Solve for x
    x = 4,108,776.84/1,937.28
  6. Step 6: Final answer
    x = 2,120.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.