Home / 3,243.78-4,474.98-2,547.18

Finding the Fourth Proportional to 3,243.78, 4,474.98 and 2,547.18

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Solution

The fourth proportional to 3,243.78, 4,474.98 and 2,547.18 is: 3,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.78 : 4,474.98 = 2,547.18 : x
  2. Step 2: Convert to fraction form
    3,243.78/4,474.98 = 2,547.18/x
  3. Step 3: Cross multiply
    3,243.78x = 4,474.98 × 2,547.18
  4. Step 4: Simplify right side
    3,243.78x = 11,398,579.56
  5. Step 5: Solve for x
    x = 11,398,579.56/3,243.78
  6. Step 6: Final answer
    x = 3,513.98

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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.