Home / 1,306.97-1,945.59-1,247.23

Finding the Fourth Proportional to 1,306.97, 1,945.59 and 1,247.23

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Solution

The fourth proportional to 1,306.97, 1,945.59 and 1,247.23 is: 1,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.97 : 1,945.59 = 1,247.23 : x
  2. Step 2: Convert to fraction form
    1,306.97/1,945.59 = 1,247.23/x
  3. Step 3: Cross multiply
    1,306.97x = 1,945.59 × 1,247.23
  4. Step 4: Simplify right side
    1,306.97x = 2,426,595.97
  5. Step 5: Solve for x
    x = 2,426,595.97/1,306.97
  6. Step 6: Final answer
    x = 1,856.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.