Home / 5,618.10-8,427.11-1,458.10

Finding the Fourth Proportional to 5,618.10, 8,427.11 and 1,458.10

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Solution

The fourth proportional to 5,618.10, 8,427.11 and 1,458.10 is: 2,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.10 : 8,427.11 = 1,458.10 : x
  2. Step 2: Convert to fraction form
    5,618.10/8,427.11 = 1,458.10/x
  3. Step 3: Cross multiply
    5,618.10x = 8,427.11 × 1,458.10
  4. Step 4: Simplify right side
    5,618.10x = 12,287,519.66
  5. Step 5: Solve for x
    x = 12,287,519.66/5,618.10
  6. Step 6: Final answer
    x = 2,187.13

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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.