Home / 2,378.06-3,565.04-1,281.15

Finding the Fourth Proportional to 2,378.06, 3,565.04 and 1,281.15

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Solution

The fourth proportional to 2,378.06, 3,565.04 and 1,281.15 is: 1,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.06 : 3,565.04 = 1,281.15 : x
  2. Step 2: Convert to fraction form
    2,378.06/3,565.04 = 1,281.15/x
  3. Step 3: Cross multiply
    2,378.06x = 3,565.04 × 1,281.15
  4. Step 4: Simplify right side
    2,378.06x = 4,567,344.59
  5. Step 5: Solve for x
    x = 4,567,344.59/2,378.06
  6. Step 6: Final answer
    x = 1,920.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.