Home / 2,715.32-3,743.96-1,769.78

Finding the Fourth Proportional to 2,715.32, 3,743.96 and 1,769.78

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Solution

The fourth proportional to 2,715.32, 3,743.96 and 1,769.78 is: 2,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.32 : 3,743.96 = 1,769.78 : x
  2. Step 2: Convert to fraction form
    2,715.32/3,743.96 = 1,769.78/x
  3. Step 3: Cross multiply
    2,715.32x = 3,743.96 × 1,769.78
  4. Step 4: Simplify right side
    2,715.32x = 6,625,986.04
  5. Step 5: Solve for x
    x = 6,625,986.04/2,715.32
  6. Step 6: Final answer
    x = 2,440.22

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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.