Home / 3,971.48-5,478.17-2,557.01

Finding the Fourth Proportional to 3,971.48, 5,478.17 and 2,557.01

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Solution

The fourth proportional to 3,971.48, 5,478.17 and 2,557.01 is: 3,527.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.48 : 5,478.17 = 2,557.01 : x
  2. Step 2: Convert to fraction form
    3,971.48/5,478.17 = 2,557.01/x
  3. Step 3: Cross multiply
    3,971.48x = 5,478.17 × 2,557.01
  4. Step 4: Simplify right side
    3,971.48x = 14,007,736.38
  5. Step 5: Solve for x
    x = 14,007,736.38/3,971.48
  6. Step 6: Final answer
    x = 3,527.08

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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.