Home / 3,904.05-5,388.25-3,071.10

Finding the Fourth Proportional to 3,904.05, 5,388.25 and 3,071.10

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Solution

The fourth proportional to 3,904.05, 5,388.25 and 3,071.10 is: 4,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.05 : 5,388.25 = 3,071.10 : x
  2. Step 2: Convert to fraction form
    3,904.05/5,388.25 = 3,071.10/x
  3. Step 3: Cross multiply
    3,904.05x = 5,388.25 × 3,071.10
  4. Step 4: Simplify right side
    3,904.05x = 16,547,854.58
  5. Step 5: Solve for x
    x = 16,547,854.58/3,904.05
  6. Step 6: Final answer
    x = 4,238.64

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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.