Home / 1,591.31-2,386.45-1,102.88

Finding the Fourth Proportional to 1,591.31, 2,386.45 and 1,102.88

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Solution

The fourth proportional to 1,591.31, 2,386.45 and 1,102.88 is: 1,653.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.31 : 2,386.45 = 1,102.88 : x
  2. Step 2: Convert to fraction form
    1,591.31/2,386.45 = 1,102.88/x
  3. Step 3: Cross multiply
    1,591.31x = 2,386.45 × 1,102.88
  4. Step 4: Simplify right side
    1,591.31x = 2,631,953.29
  5. Step 5: Solve for x
    x = 2,631,953.29/1,591.31
  6. Step 6: Final answer
    x = 1,653.96

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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.