Home / 5,386.32-8,079.49-1,490.74

Finding the Fourth Proportional to 5,386.32, 8,079.49 and 1,490.74

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Solution

The fourth proportional to 5,386.32, 8,079.49 and 1,490.74 is: 2,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.32 : 8,079.49 = 1,490.74 : x
  2. Step 2: Convert to fraction form
    5,386.32/8,079.49 = 1,490.74/x
  3. Step 3: Cross multiply
    5,386.32x = 8,079.49 × 1,490.74
  4. Step 4: Simplify right side
    5,386.32x = 12,044,418.92
  5. Step 5: Solve for x
    x = 12,044,418.92/5,386.32
  6. Step 6: Final answer
    x = 2,236.11

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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.