Home / 1,348.24-1,853.84-1,151.40

Finding the Fourth Proportional to 1,348.24, 1,853.84 and 1,151.40

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Solution

The fourth proportional to 1,348.24, 1,853.84 and 1,151.40 is: 1,583.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.24 : 1,853.84 = 1,151.40 : x
  2. Step 2: Convert to fraction form
    1,348.24/1,853.84 = 1,151.40/x
  3. Step 3: Cross multiply
    1,348.24x = 1,853.84 × 1,151.40
  4. Step 4: Simplify right side
    1,348.24x = 2,134,511.38
  5. Step 5: Solve for x
    x = 2,134,511.38/1,348.24
  6. Step 6: Final answer
    x = 1,583.18

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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.