Home / 5,440.32-8,159.40-2,665.80

Finding the Fourth Proportional to 5,440.32, 8,159.40 and 2,665.80

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Solution

The fourth proportional to 5,440.32, 8,159.40 and 2,665.80 is: 3,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.32 : 8,159.40 = 2,665.80 : x
  2. Step 2: Convert to fraction form
    5,440.32/8,159.40 = 2,665.80/x
  3. Step 3: Cross multiply
    5,440.32x = 8,159.40 × 2,665.80
  4. Step 4: Simplify right side
    5,440.32x = 21,751,328.52
  5. Step 5: Solve for x
    x = 21,751,328.52/5,440.32
  6. Step 6: Final answer
    x = 3,998.17

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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.