Home / 2,220.71-3,334.13-1,125.83

Finding the Fourth Proportional to 2,220.71, 3,334.13 and 1,125.83

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Solution

The fourth proportional to 2,220.71, 3,334.13 and 1,125.83 is: 1,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.71 : 3,334.13 = 1,125.83 : x
  2. Step 2: Convert to fraction form
    2,220.71/3,334.13 = 1,125.83/x
  3. Step 3: Cross multiply
    2,220.71x = 3,334.13 × 1,125.83
  4. Step 4: Simplify right side
    2,220.71x = 3,753,670.51
  5. Step 5: Solve for x
    x = 3,753,670.51/2,220.71
  6. Step 6: Final answer
    x = 1,690.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.