Home / 3,243.72-4,477.78-2,497.40

Finding the Fourth Proportional to 3,243.72, 4,477.78 and 2,497.40

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Solution

The fourth proportional to 3,243.72, 4,477.78 and 2,497.40 is: 3,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.72 : 4,477.78 = 2,497.40 : x
  2. Step 2: Convert to fraction form
    3,243.72/4,477.78 = 2,497.40/x
  3. Step 3: Cross multiply
    3,243.72x = 4,477.78 × 2,497.40
  4. Step 4: Simplify right side
    3,243.72x = 11,182,807.77
  5. Step 5: Solve for x
    x = 11,182,807.77/3,243.72
  6. Step 6: Final answer
    x = 3,447.53

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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.