Home / 7,340.19-10,129.48-3,983.03

Finding the Fourth Proportional to 7,340.19, 10,129.48 and 3,983.03

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Solution

The fourth proportional to 7,340.19, 10,129.48 and 3,983.03 is: 5,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.19 : 10,129.48 = 3,983.03 : x
  2. Step 2: Convert to fraction form
    7,340.19/10,129.48 = 3,983.03/x
  3. Step 3: Cross multiply
    7,340.19x = 10,129.48 × 3,983.03
  4. Step 4: Simplify right side
    7,340.19x = 40,346,079.49
  5. Step 5: Solve for x
    x = 40,346,079.49/7,340.19
  6. Step 6: Final answer
    x = 5,496.60

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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.