Home / 2,387.29-3,294.48-1,339.60

Finding the Fourth Proportional to 2,387.29, 3,294.48 and 1,339.60

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Solution

The fourth proportional to 2,387.29, 3,294.48 and 1,339.60 is: 1,848.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.29 : 3,294.48 = 1,339.60 : x
  2. Step 2: Convert to fraction form
    2,387.29/3,294.48 = 1,339.60/x
  3. Step 3: Cross multiply
    2,387.29x = 3,294.48 × 1,339.60
  4. Step 4: Simplify right side
    2,387.29x = 4,413,285.41
  5. Step 5: Solve for x
    x = 4,413,285.41/2,387.29
  6. Step 6: Final answer
    x = 1,848.66

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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.