Home / 5,427.18-8,138.88-2,307.06

Finding the Fourth Proportional to 5,427.18, 8,138.88 and 2,307.06

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Solution

The fourth proportional to 5,427.18, 8,138.88 and 2,307.06 is: 3,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.18 : 8,138.88 = 2,307.06 : x
  2. Step 2: Convert to fraction form
    5,427.18/8,138.88 = 2,307.06/x
  3. Step 3: Cross multiply
    5,427.18x = 8,138.88 × 2,307.06
  4. Step 4: Simplify right side
    5,427.18x = 18,776,884.49
  5. Step 5: Solve for x
    x = 18,776,884.49/5,427.18
  6. Step 6: Final answer
    x = 3,459.79

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1.5x scale

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.