Home / 5,427.79-8,140.85-2,095.57

Finding the Fourth Proportional to 5,427.79, 8,140.85 and 2,095.57

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Solution

The fourth proportional to 5,427.79, 8,140.85 and 2,095.57 is: 3,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.79 : 8,140.85 = 2,095.57 : x
  2. Step 2: Convert to fraction form
    5,427.79/8,140.85 = 2,095.57/x
  3. Step 3: Cross multiply
    5,427.79x = 8,140.85 × 2,095.57
  4. Step 4: Simplify right side
    5,427.79x = 17,059,682.80
  5. Step 5: Solve for x
    x = 17,059,682.80/5,427.79
  6. Step 6: Final answer
    x = 3,143.02

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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.