Home / 3,904.18-5,387.74-2,225.66

Finding the Fourth Proportional to 3,904.18, 5,387.74 and 2,225.66

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Solution

The fourth proportional to 3,904.18, 5,387.74 and 2,225.66 is: 3,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.18 : 5,387.74 = 2,225.66 : x
  2. Step 2: Convert to fraction form
    3,904.18/5,387.74 = 2,225.66/x
  3. Step 3: Cross multiply
    3,904.18x = 5,387.74 × 2,225.66
  4. Step 4: Simplify right side
    3,904.18x = 11,991,244.91
  5. Step 5: Solve for x
    x = 11,991,244.91/3,904.18
  6. Step 6: Final answer
    x = 3,071.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.