Home / 5,399.42-7,448.65-3,159.91

Finding the Fourth Proportional to 5,399.42, 7,448.65 and 3,159.91

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Solution

The fourth proportional to 5,399.42, 7,448.65 and 3,159.91 is: 4,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.42 : 7,448.65 = 3,159.91 : x
  2. Step 2: Convert to fraction form
    5,399.42/7,448.65 = 3,159.91/x
  3. Step 3: Cross multiply
    5,399.42x = 7,448.65 × 3,159.91
  4. Step 4: Simplify right side
    5,399.42x = 23,537,063.62
  5. Step 5: Solve for x
    x = 23,537,063.62/5,399.42
  6. Step 6: Final answer
    x = 4,359.18

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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.