Home / 7,159.20-10,739.07-1,965.48

Finding the Fourth Proportional to 7,159.20, 10,739.07 and 1,965.48

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Solution

The fourth proportional to 7,159.20, 10,739.07 and 1,965.48 is: 2,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.20 : 10,739.07 = 1,965.48 : x
  2. Step 2: Convert to fraction form
    7,159.20/10,739.07 = 1,965.48/x
  3. Step 3: Cross multiply
    7,159.20x = 10,739.07 × 1,965.48
  4. Step 4: Simplify right side
    7,159.20x = 21,107,427.30
  5. Step 5: Solve for x
    x = 21,107,427.30/7,159.20
  6. Step 6: Final answer
    x = 2,948.29

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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.