Home / 2,122.61-2,929.22-1,165.59

Finding the Fourth Proportional to 2,122.61, 2,929.22 and 1,165.59

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Solution

The fourth proportional to 2,122.61, 2,929.22 and 1,165.59 is: 1,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.61 : 2,929.22 = 1,165.59 : x
  2. Step 2: Convert to fraction form
    2,122.61/2,929.22 = 1,165.59/x
  3. Step 3: Cross multiply
    2,122.61x = 2,929.22 × 1,165.59
  4. Step 4: Simplify right side
    2,122.61x = 3,414,272.45
  5. Step 5: Solve for x
    x = 3,414,272.45/2,122.61
  6. Step 6: Final answer
    x = 1,608.53

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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.