Home / 2,660.64-3,991.14-1,017.36

Finding the Fourth Proportional to 2,660.64, 3,991.14 and 1,017.36

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Solution

The fourth proportional to 2,660.64, 3,991.14 and 1,017.36 is: 1,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.64 : 3,991.14 = 1,017.36 : x
  2. Step 2: Convert to fraction form
    2,660.64/3,991.14 = 1,017.36/x
  3. Step 3: Cross multiply
    2,660.64x = 3,991.14 × 1,017.36
  4. Step 4: Simplify right side
    2,660.64x = 4,060,426.19
  5. Step 5: Solve for x
    x = 4,060,426.19/2,660.64
  6. Step 6: Final answer
    x = 1,526.11

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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.