Home / 7,431.31-10,255.52-4,245.13

Finding the Fourth Proportional to 7,431.31, 10,255.52 and 4,245.13

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Solution

The fourth proportional to 7,431.31, 10,255.52 and 4,245.13 is: 5,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.31 : 10,255.52 = 4,245.13 : x
  2. Step 2: Convert to fraction form
    7,431.31/10,255.52 = 4,245.13/x
  3. Step 3: Cross multiply
    7,431.31x = 10,255.52 × 4,245.13
  4. Step 4: Simplify right side
    7,431.31x = 43,535,943.11
  5. Step 5: Solve for x
    x = 43,535,943.11/7,431.31
  6. Step 6: Final answer
    x = 5,858.45

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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.