Home / 2,387.40-3,294.56-1,339.44

Finding the Fourth Proportional to 2,387.40, 3,294.56 and 1,339.44

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Solution

The fourth proportional to 2,387.40, 3,294.56 and 1,339.44 is: 1,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.40 : 3,294.56 = 1,339.44 : x
  2. Step 2: Convert to fraction form
    2,387.40/3,294.56 = 1,339.44/x
  3. Step 3: Cross multiply
    2,387.40x = 3,294.56 × 1,339.44
  4. Step 4: Simplify right side
    2,387.40x = 4,412,865.45
  5. Step 5: Solve for x
    x = 4,412,865.45/2,387.40
  6. Step 6: Final answer
    x = 1,848.40

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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.