Home / 2,354.24-3,248.88-1,306.40

Finding the Fourth Proportional to 2,354.24, 3,248.88 and 1,306.40

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Solution

The fourth proportional to 2,354.24, 3,248.88 and 1,306.40 is: 1,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.24 : 3,248.88 = 1,306.40 : x
  2. Step 2: Convert to fraction form
    2,354.24/3,248.88 = 1,306.40/x
  3. Step 3: Cross multiply
    2,354.24x = 3,248.88 × 1,306.40
  4. Step 4: Simplify right side
    2,354.24x = 4,244,336.83
  5. Step 5: Solve for x
    x = 4,244,336.83/2,354.24
  6. Step 6: Final answer
    x = 1,802.85

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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.