Home / 1,424.18-2,136.60-558.50

Finding the Fourth Proportional to 1,424.18, 2,136.60 and 558.50

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Solution

The fourth proportional to 1,424.18, 2,136.60 and 558.50 is: 837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.18 : 2,136.60 = 558.50 : x
  2. Step 2: Convert to fraction form
    1,424.18/2,136.60 = 558.50/x
  3. Step 3: Cross multiply
    1,424.18x = 2,136.60 × 558.50
  4. Step 4: Simplify right side
    1,424.18x = 1,193,291.10
  5. Step 5: Solve for x
    x = 1,193,291.10/1,424.18
  6. Step 6: Final answer
    x = 837.88

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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.