Home / 2,311.60-3,191.28-1,527.02

Finding the Fourth Proportional to 2,311.60, 3,191.28 and 1,527.02

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Solution

The fourth proportional to 2,311.60, 3,191.28 and 1,527.02 is: 2,108.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.60 : 3,191.28 = 1,527.02 : x
  2. Step 2: Convert to fraction form
    2,311.60/3,191.28 = 1,527.02/x
  3. Step 3: Cross multiply
    2,311.60x = 3,191.28 × 1,527.02
  4. Step 4: Simplify right side
    2,311.60x = 4,873,148.39
  5. Step 5: Solve for x
    x = 4,873,148.39/2,311.60
  6. Step 6: Final answer
    x = 2,108.13

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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.