Home / 2,398.61-3,591.19-1,811.76

Finding the Fourth Proportional to 2,398.61, 3,591.19 and 1,811.76

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Solution

The fourth proportional to 2,398.61, 3,591.19 and 1,811.76 is: 2,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.61 : 3,591.19 = 1,811.76 : x
  2. Step 2: Convert to fraction form
    2,398.61/3,591.19 = 1,811.76/x
  3. Step 3: Cross multiply
    2,398.61x = 3,591.19 × 1,811.76
  4. Step 4: Simplify right side
    2,398.61x = 6,506,396.89
  5. Step 5: Solve for x
    x = 6,506,396.89/2,398.61
  6. Step 6: Final answer
    x = 2,712.57

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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.