Home / 4,122.86-5,689.21-2,330.25

Finding the Fourth Proportional to 4,122.86, 5,689.21 and 2,330.25

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Solution

The fourth proportional to 4,122.86, 5,689.21 and 2,330.25 is: 3,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.86 : 5,689.21 = 2,330.25 : x
  2. Step 2: Convert to fraction form
    4,122.86/5,689.21 = 2,330.25/x
  3. Step 3: Cross multiply
    4,122.86x = 5,689.21 × 2,330.25
  4. Step 4: Simplify right side
    4,122.86x = 13,257,281.60
  5. Step 5: Solve for x
    x = 13,257,281.60/4,122.86
  6. Step 6: Final answer
    x = 3,215.55

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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.