Home / 5,386.26-8,079.40-1,490.96

Finding the Fourth Proportional to 5,386.26, 8,079.40 and 1,490.96

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Solution

The fourth proportional to 5,386.26, 8,079.40 and 1,490.96 is: 2,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.26 : 8,079.40 = 1,490.96 : x
  2. Step 2: Convert to fraction form
    5,386.26/8,079.40 = 1,490.96/x
  3. Step 3: Cross multiply
    5,386.26x = 8,079.40 × 1,490.96
  4. Step 4: Simplify right side
    5,386.26x = 12,046,062.22
  5. Step 5: Solve for x
    x = 12,046,062.22/5,386.26
  6. Step 6: Final answer
    x = 2,236.44

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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.