Home / 3,933.72-5,428.95-2,254.59

Finding the Fourth Proportional to 3,933.72, 5,428.95 and 2,254.59

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Solution

The fourth proportional to 3,933.72, 5,428.95 and 2,254.59 is: 3,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.72 : 5,428.95 = 2,254.59 : x
  2. Step 2: Convert to fraction form
    3,933.72/5,428.95 = 2,254.59/x
  3. Step 3: Cross multiply
    3,933.72x = 5,428.95 × 2,254.59
  4. Step 4: Simplify right side
    3,933.72x = 12,240,029.24
  5. Step 5: Solve for x
    x = 12,240,029.24/3,933.72
  6. Step 6: Final answer
    x = 3,111.57

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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.