Home / 2,707.50-4,059.88-1,318.76

Finding the Fourth Proportional to 2,707.50, 4,059.88 and 1,318.76

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Solution

The fourth proportional to 2,707.50, 4,059.88 and 1,318.76 is: 1,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.50 : 4,059.88 = 1,318.76 : x
  2. Step 2: Convert to fraction form
    2,707.50/4,059.88 = 1,318.76/x
  3. Step 3: Cross multiply
    2,707.50x = 4,059.88 × 1,318.76
  4. Step 4: Simplify right side
    2,707.50x = 5,354,007.35
  5. Step 5: Solve for x
    x = 5,354,007.35/2,707.50
  6. Step 6: Final answer
    x = 1,977.47

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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.