Home / 2,263.70-3,124.50-1,380.08

Finding the Fourth Proportional to 2,263.70, 3,124.50 and 1,380.08

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Solution

The fourth proportional to 2,263.70, 3,124.50 and 1,380.08 is: 1,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.70 : 3,124.50 = 1,380.08 : x
  2. Step 2: Convert to fraction form
    2,263.70/3,124.50 = 1,380.08/x
  3. Step 3: Cross multiply
    2,263.70x = 3,124.50 × 1,380.08
  4. Step 4: Simplify right side
    2,263.70x = 4,312,059.96
  5. Step 5: Solve for x
    x = 4,312,059.96/2,263.70
  6. Step 6: Final answer
    x = 1,904.87

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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.