Home / 4,145.81-5,721.36-2,257.55

Finding the Fourth Proportional to 4,145.81, 5,721.36 and 2,257.55

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Solution

The fourth proportional to 4,145.81, 5,721.36 and 2,257.55 is: 3,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.81 : 5,721.36 = 2,257.55 : x
  2. Step 2: Convert to fraction form
    4,145.81/5,721.36 = 2,257.55/x
  3. Step 3: Cross multiply
    4,145.81x = 5,721.36 × 2,257.55
  4. Step 4: Simplify right side
    4,145.81x = 12,916,256.27
  5. Step 5: Solve for x
    x = 12,916,256.27/4,145.81
  6. Step 6: Final answer
    x = 3,115.50

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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.