Home / 3,410.28-5,115.36-1,358.28

Finding the Fourth Proportional to 3,410.28, 5,115.36 and 1,358.28

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Solution

The fourth proportional to 3,410.28, 5,115.36 and 1,358.28 is: 2,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.28 : 5,115.36 = 1,358.28 : x
  2. Step 2: Convert to fraction form
    3,410.28/5,115.36 = 1,358.28/x
  3. Step 3: Cross multiply
    3,410.28x = 5,115.36 × 1,358.28
  4. Step 4: Simplify right side
    3,410.28x = 6,948,091.18
  5. Step 5: Solve for x
    x = 6,948,091.18/3,410.28
  6. Step 6: Final answer
    x = 2,037.40

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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.