Home / 3,488.56-5,256.11-3,155.40

Finding the Fourth Proportional to 3,488.56, 5,256.11 and 3,155.40

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Solution

The fourth proportional to 3,488.56, 5,256.11 and 3,155.40 is: 4,754.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.56 : 5,256.11 = 3,155.40 : x
  2. Step 2: Convert to fraction form
    3,488.56/5,256.11 = 3,155.40/x
  3. Step 3: Cross multiply
    3,488.56x = 5,256.11 × 3,155.40
  4. Step 4: Simplify right side
    3,488.56x = 16,585,122.60
  5. Step 5: Solve for x
    x = 16,585,122.60/3,488.56
  6. Step 6: Final answer
    x = 4,754.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.