Home / 5,386.61-8,079.30-1,876.02

Finding the Fourth Proportional to 5,386.61, 8,079.30 and 1,876.02

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Solution

The fourth proportional to 5,386.61, 8,079.30 and 1,876.02 is: 2,813.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.61 : 8,079.30 = 1,876.02 : x
  2. Step 2: Convert to fraction form
    5,386.61/8,079.30 = 1,876.02/x
  3. Step 3: Cross multiply
    5,386.61x = 8,079.30 × 1,876.02
  4. Step 4: Simplify right side
    5,386.61x = 15,156,928.39
  5. Step 5: Solve for x
    x = 15,156,928.39/5,386.61
  6. Step 6: Final answer
    x = 2,813.82

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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.