Home / 3,036.56-4,192.38-2,478.36

Finding the Fourth Proportional to 3,036.56, 4,192.38 and 2,478.36

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Solution

The fourth proportional to 3,036.56, 4,192.38 and 2,478.36 is: 3,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.56 : 4,192.38 = 2,478.36 : x
  2. Step 2: Convert to fraction form
    3,036.56/4,192.38 = 2,478.36/x
  3. Step 3: Cross multiply
    3,036.56x = 4,192.38 × 2,478.36
  4. Step 4: Simplify right side
    3,036.56x = 10,390,207.25
  5. Step 5: Solve for x
    x = 10,390,207.25/3,036.56
  6. Step 6: Final answer
    x = 3,421.71

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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.