Home / 3,417.03-5,127.78-3,138.20

Finding the Fourth Proportional to 3,417.03, 5,127.78 and 3,138.20

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Solution

The fourth proportional to 3,417.03, 5,127.78 and 3,138.20 is: 4,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.03 : 5,127.78 = 3,138.20 : x
  2. Step 2: Convert to fraction form
    3,417.03/5,127.78 = 3,138.20/x
  3. Step 3: Cross multiply
    3,417.03x = 5,127.78 × 3,138.20
  4. Step 4: Simplify right side
    3,417.03x = 16,091,973.56
  5. Step 5: Solve for x
    x = 16,091,973.56/3,417.03
  6. Step 6: Final answer
    x = 4,709.35

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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.