Home / 2,263.15-3,123.21-1,378.93

Finding the Fourth Proportional to 2,263.15, 3,123.21 and 1,378.93

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Solution

The fourth proportional to 2,263.15, 3,123.21 and 1,378.93 is: 1,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.15 : 3,123.21 = 1,378.93 : x
  2. Step 2: Convert to fraction form
    2,263.15/3,123.21 = 1,378.93/x
  3. Step 3: Cross multiply
    2,263.15x = 3,123.21 × 1,378.93
  4. Step 4: Simplify right side
    2,263.15x = 4,306,687.97
  5. Step 5: Solve for x
    x = 4,306,687.97/2,263.15
  6. Step 6: Final answer
    x = 1,902.96

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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.