Home / 2,387.95-3,557.30-2,315.41

Finding the Fourth Proportional to 2,387.95, 3,557.30 and 2,315.41

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Solution

The fourth proportional to 2,387.95, 3,557.30 and 2,315.41 is: 3,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.95 : 3,557.30 = 2,315.41 : x
  2. Step 2: Convert to fraction form
    2,387.95/3,557.30 = 2,315.41/x
  3. Step 3: Cross multiply
    2,387.95x = 3,557.30 × 2,315.41
  4. Step 4: Simplify right side
    2,387.95x = 8,236,587.52
  5. Step 5: Solve for x
    x = 8,236,587.52/2,387.95
  6. Step 6: Final answer
    x = 3,449.23

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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.