Home / 5,390.77-8,071.13-2,752.60

Finding the Fourth Proportional to 5,390.77, 8,071.13 and 2,752.60

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Solution

The fourth proportional to 5,390.77, 8,071.13 and 2,752.60 is: 4,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.77 : 8,071.13 = 2,752.60 : x
  2. Step 2: Convert to fraction form
    5,390.77/8,071.13 = 2,752.60/x
  3. Step 3: Cross multiply
    5,390.77x = 8,071.13 × 2,752.60
  4. Step 4: Simplify right side
    5,390.77x = 22,216,592.44
  5. Step 5: Solve for x
    x = 22,216,592.44/5,390.77
  6. Step 6: Final answer
    x = 4,121.23

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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.