Home / 1,760.50-2,427.28-1,129.91

Finding the Fourth Proportional to 1,760.50, 2,427.28 and 1,129.91

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Solution

The fourth proportional to 1,760.50, 2,427.28 and 1,129.91 is: 1,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.50 : 2,427.28 = 1,129.91 : x
  2. Step 2: Convert to fraction form
    1,760.50/2,427.28 = 1,129.91/x
  3. Step 3: Cross multiply
    1,760.50x = 2,427.28 × 1,129.91
  4. Step 4: Simplify right side
    1,760.50x = 2,742,607.94
  5. Step 5: Solve for x
    x = 2,742,607.94/1,760.50
  6. Step 6: Final answer
    x = 1,557.86

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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.