Home / 3,904.16-5,387.40-2,225.30

Finding the Fourth Proportional to 3,904.16, 5,387.40 and 2,225.30

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Solution

The fourth proportional to 3,904.16, 5,387.40 and 2,225.30 is: 3,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.16 : 5,387.40 = 2,225.30 : x
  2. Step 2: Convert to fraction form
    3,904.16/5,387.40 = 2,225.30/x
  3. Step 3: Cross multiply
    3,904.16x = 5,387.40 × 2,225.30
  4. Step 4: Simplify right side
    3,904.16x = 11,988,554.28
  5. Step 5: Solve for x
    x = 11,988,554.28/3,904.16
  6. Step 6: Final answer
    x = 3,070.72

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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.