Home / 2,228.92-3,077.60-1,521.79

Finding the Fourth Proportional to 2,228.92, 3,077.60 and 1,521.79

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Solution

The fourth proportional to 2,228.92, 3,077.60 and 1,521.79 is: 2,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.92 : 3,077.60 = 1,521.79 : x
  2. Step 2: Convert to fraction form
    2,228.92/3,077.60 = 1,521.79/x
  3. Step 3: Cross multiply
    2,228.92x = 3,077.60 × 1,521.79
  4. Step 4: Simplify right side
    2,228.92x = 4,683,445.60
  5. Step 5: Solve for x
    x = 4,683,445.60/2,228.92
  6. Step 6: Final answer
    x = 2,101.22

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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.