Home / 1,615.05-2,422.58-1,031.85

Finding the Fourth Proportional to 1,615.05, 2,422.58 and 1,031.85

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Solution

The fourth proportional to 1,615.05, 2,422.58 and 1,031.85 is: 1,547.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.05 : 2,422.58 = 1,031.85 : x
  2. Step 2: Convert to fraction form
    1,615.05/2,422.58 = 1,031.85/x
  3. Step 3: Cross multiply
    1,615.05x = 2,422.58 × 1,031.85
  4. Step 4: Simplify right side
    1,615.05x = 2,499,734.01
  5. Step 5: Solve for x
    x = 2,499,734.01/1,615.05
  6. Step 6: Final answer
    x = 1,547.78

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