Home / 1,647.06-2,471.14-1,031.20

Finding the Fourth Proportional to 1,647.06, 2,471.14 and 1,031.20

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Solution

The fourth proportional to 1,647.06, 2,471.14 and 1,031.20 is: 1,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.06 : 2,471.14 = 1,031.20 : x
  2. Step 2: Convert to fraction form
    1,647.06/2,471.14 = 1,031.20/x
  3. Step 3: Cross multiply
    1,647.06x = 2,471.14 × 1,031.20
  4. Step 4: Simplify right side
    1,647.06x = 2,548,239.57
  5. Step 5: Solve for x
    x = 2,548,239.57/1,647.06
  6. Step 6: Final answer
    x = 1,547.14

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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.