Home / 1,763.28-2,639.40-1,301.56

Finding the Fourth Proportional to 1,763.28, 2,639.40 and 1,301.56

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Solution

The fourth proportional to 1,763.28, 2,639.40 and 1,301.56 is: 1,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.28 : 2,639.40 = 1,301.56 : x
  2. Step 2: Convert to fraction form
    1,763.28/2,639.40 = 1,301.56/x
  3. Step 3: Cross multiply
    1,763.28x = 2,639.40 × 1,301.56
  4. Step 4: Simplify right side
    1,763.28x = 3,435,337.46
  5. Step 5: Solve for x
    x = 3,435,337.46/1,763.28
  6. Step 6: Final answer
    x = 1,948.27

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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.