Home / 3,417.20-5,131.20-2,326.40

Finding the Fourth Proportional to 3,417.20, 5,131.20 and 2,326.40

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Solution

The fourth proportional to 3,417.20, 5,131.20 and 2,326.40 is: 3,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.20 : 5,131.20 = 2,326.40 : x
  2. Step 2: Convert to fraction form
    3,417.20/5,131.20 = 2,326.40/x
  3. Step 3: Cross multiply
    3,417.20x = 5,131.20 × 2,326.40
  4. Step 4: Simplify right side
    3,417.20x = 11,937,223.68
  5. Step 5: Solve for x
    x = 11,937,223.68/3,417.20
  6. Step 6: Final answer
    x = 3,493.28

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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.