Home / 5,686.15-7,846.76-3,168.25

Finding the Fourth Proportional to 5,686.15, 7,846.76 and 3,168.25

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Solution

The fourth proportional to 5,686.15, 7,846.76 and 3,168.25 is: 4,372.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.15 : 7,846.76 = 3,168.25 : x
  2. Step 2: Convert to fraction form
    5,686.15/7,846.76 = 3,168.25/x
  3. Step 3: Cross multiply
    5,686.15x = 7,846.76 × 3,168.25
  4. Step 4: Simplify right side
    5,686.15x = 24,860,442.29
  5. Step 5: Solve for x
    x = 24,860,442.29/5,686.15
  6. Step 6: Final answer
    x = 4,372.11

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.