Home / 1,373.23-1,895.30-1,042.75

Finding the Fourth Proportional to 1,373.23, 1,895.30 and 1,042.75

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Solution

The fourth proportional to 1,373.23, 1,895.30 and 1,042.75 is: 1,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.23 : 1,895.30 = 1,042.75 : x
  2. Step 2: Convert to fraction form
    1,373.23/1,895.30 = 1,042.75/x
  3. Step 3: Cross multiply
    1,373.23x = 1,895.30 × 1,042.75
  4. Step 4: Simplify right side
    1,373.23x = 1,976,324.08
  5. Step 5: Solve for x
    x = 1,976,324.08/1,373.23
  6. Step 6: Final answer
    x = 1,439.18

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1.5x scale

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.