Home / 1,122.19-1,679.46-1,024.81

Finding the Fourth Proportional to 1,122.19, 1,679.46 and 1,024.81

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Solution

The fourth proportional to 1,122.19, 1,679.46 and 1,024.81 is: 1,533.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.19 : 1,679.46 = 1,024.81 : x
  2. Step 2: Convert to fraction form
    1,122.19/1,679.46 = 1,024.81/x
  3. Step 3: Cross multiply
    1,122.19x = 1,679.46 × 1,024.81
  4. Step 4: Simplify right side
    1,122.19x = 1,721,127.40
  5. Step 5: Solve for x
    x = 1,721,127.40/1,122.19
  6. Step 6: Final answer
    x = 1,533.72

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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.