Home / 2,122.74-2,920.32-2,073.60

Finding the Fourth Proportional to 2,122.74, 2,920.32 and 2,073.60

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Solution

The fourth proportional to 2,122.74, 2,920.32 and 2,073.60 is: 2,852.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.74 : 2,920.32 = 2,073.60 : x
  2. Step 2: Convert to fraction form
    2,122.74/2,920.32 = 2,073.60/x
  3. Step 3: Cross multiply
    2,122.74x = 2,920.32 × 2,073.60
  4. Step 4: Simplify right side
    2,122.74x = 6,055,575.55
  5. Step 5: Solve for x
    x = 6,055,575.55/2,122.74
  6. Step 6: Final answer
    x = 2,852.72

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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.