Home / 7,340.56-10,129.70-3,983.26

Finding the Fourth Proportional to 7,340.56, 10,129.70 and 3,983.26

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Solution

The fourth proportional to 7,340.56, 10,129.70 and 3,983.26 is: 5,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.56 : 10,129.70 = 3,983.26 : x
  2. Step 2: Convert to fraction form
    7,340.56/10,129.70 = 3,983.26/x
  3. Step 3: Cross multiply
    7,340.56x = 10,129.70 × 3,983.26
  4. Step 4: Simplify right side
    7,340.56x = 40,349,228.82
  5. Step 5: Solve for x
    x = 40,349,228.82/7,340.56
  6. Step 6: Final answer
    x = 5,496.75

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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.