Home / 2,665.32-3,680.45-1,672.30

Finding the Fourth Proportional to 2,665.32, 3,680.45 and 1,672.30

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Solution

The fourth proportional to 2,665.32, 3,680.45 and 1,672.30 is: 2,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665.32 : 3,680.45 = 1,672.30 : x
  2. Step 2: Convert to fraction form
    2,665.32/3,680.45 = 1,672.30/x
  3. Step 3: Cross multiply
    2,665.32x = 3,680.45 × 1,672.30
  4. Step 4: Simplify right side
    2,665.32x = 6,154,816.54
  5. Step 5: Solve for x
    x = 6,154,816.54/2,665.32
  6. Step 6: Final answer
    x = 2,309.22

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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.