Home / 7,348.56-10,140.80-3,991.26

Finding the Fourth Proportional to 7,348.56, 10,140.80 and 3,991.26

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Solution

The fourth proportional to 7,348.56, 10,140.80 and 3,991.26 is: 5,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.56 : 10,140.80 = 3,991.26 : x
  2. Step 2: Convert to fraction form
    7,348.56/10,140.80 = 3,991.26/x
  3. Step 3: Cross multiply
    7,348.56x = 10,140.80 × 3,991.26
  4. Step 4: Simplify right side
    7,348.56x = 40,474,552.89
  5. Step 5: Solve for x
    x = 40,474,552.89/7,348.56
  6. Step 6: Final answer
    x = 5,507.82

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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.