Home / 5,291.31-7,301.62-2,900.90

Finding the Fourth Proportional to 5,291.31, 7,301.62 and 2,900.90

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Solution

The fourth proportional to 5,291.31, 7,301.62 and 2,900.90 is: 4,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.31 : 7,301.62 = 2,900.90 : x
  2. Step 2: Convert to fraction form
    5,291.31/7,301.62 = 2,900.90/x
  3. Step 3: Cross multiply
    5,291.31x = 7,301.62 × 2,900.90
  4. Step 4: Simplify right side
    5,291.31x = 21,181,232.95
  5. Step 5: Solve for x
    x = 21,181,232.95/5,291.31
  6. Step 6: Final answer
    x = 4,003.03

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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.