Home / 1,253.60-1,729.27-1,017.81

Finding the Fourth Proportional to 1,253.60, 1,729.27 and 1,017.81

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Solution

The fourth proportional to 1,253.60, 1,729.27 and 1,017.81 is: 1,404.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.60 : 1,729.27 = 1,017.81 : x
  2. Step 2: Convert to fraction form
    1,253.60/1,729.27 = 1,017.81/x
  3. Step 3: Cross multiply
    1,253.60x = 1,729.27 × 1,017.81
  4. Step 4: Simplify right side
    1,253.60x = 1,760,068.30
  5. Step 5: Solve for x
    x = 1,760,068.30/1,253.60
  6. Step 6: Final answer
    x = 1,404.01

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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.