Home / 1,618.18-2,427.98-1,158.91

Finding the Fourth Proportional to 1,618.18, 2,427.98 and 1,158.91

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Solution

The fourth proportional to 1,618.18, 2,427.98 and 1,158.91 is: 1,738.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.18 : 2,427.98 = 1,158.91 : x
  2. Step 2: Convert to fraction form
    1,618.18/2,427.98 = 1,158.91/x
  3. Step 3: Cross multiply
    1,618.18x = 2,427.98 × 1,158.91
  4. Step 4: Simplify right side
    1,618.18x = 2,813,798.44
  5. Step 5: Solve for x
    x = 2,813,798.44/1,618.18
  6. Step 6: Final answer
    x = 1,738.87

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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.