Home / 5,291.10-7,927.05-4,311.90

Finding the Fourth Proportional to 5,291.10, 7,927.05 and 4,311.90

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Solution

The fourth proportional to 5,291.10, 7,927.05 and 4,311.90 is: 6,460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.10 : 7,927.05 = 4,311.90 : x
  2. Step 2: Convert to fraction form
    5,291.10/7,927.05 = 4,311.90/x
  3. Step 3: Cross multiply
    5,291.10x = 7,927.05 × 4,311.90
  4. Step 4: Simplify right side
    5,291.10x = 34,180,646.90
  5. Step 5: Solve for x
    x = 34,180,646.90/5,291.10
  6. Step 6: Final answer
    x = 6,460.03

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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.