Home / 2,387.20-3,294.36-1,324.99

Finding the Fourth Proportional to 2,387.20, 3,294.36 and 1,324.99

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Solution

The fourth proportional to 2,387.20, 3,294.36 and 1,324.99 is: 1,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.20 : 3,294.36 = 1,324.99 : x
  2. Step 2: Convert to fraction form
    2,387.20/3,294.36 = 1,324.99/x
  3. Step 3: Cross multiply
    2,387.20x = 3,294.36 × 1,324.99
  4. Step 4: Simplify right side
    2,387.20x = 4,364,977.58
  5. Step 5: Solve for x
    x = 4,364,977.58/2,387.20
  6. Step 6: Final answer
    x = 1,828.50

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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.