Home / 1,271.28-1,752.98-1,104.06

Finding the Fourth Proportional to 1,271.28, 1,752.98 and 1,104.06

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Solution

The fourth proportional to 1,271.28, 1,752.98 and 1,104.06 is: 1,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271.28 : 1,752.98 = 1,104.06 : x
  2. Step 2: Convert to fraction form
    1,271.28/1,752.98 = 1,104.06/x
  3. Step 3: Cross multiply
    1,271.28x = 1,752.98 × 1,104.06
  4. Step 4: Simplify right side
    1,271.28x = 1,935,395.10
  5. Step 5: Solve for x
    x = 1,935,395.10/1,271.28
  6. Step 6: Final answer
    x = 1,522.40

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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.