Home / 2,261.85-3,393.78-1,439.91

Finding the Fourth Proportional to 2,261.85, 3,393.78 and 1,439.91

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Solution

The fourth proportional to 2,261.85, 3,393.78 and 1,439.91 is: 2,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.85 : 3,393.78 = 1,439.91 : x
  2. Step 2: Convert to fraction form
    2,261.85/3,393.78 = 1,439.91/x
  3. Step 3: Cross multiply
    2,261.85x = 3,393.78 × 1,439.91
  4. Step 4: Simplify right side
    2,261.85x = 4,886,737.76
  5. Step 5: Solve for x
    x = 4,886,737.76/2,261.85
  6. Step 6: Final answer
    x = 2,160.50

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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.