Home / 5,355.47-7,389.88-2,997.02

Finding the Fourth Proportional to 5,355.47, 7,389.88 and 2,997.02

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Solution

The fourth proportional to 5,355.47, 7,389.88 and 2,997.02 is: 4,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.47 : 7,389.88 = 2,997.02 : x
  2. Step 2: Convert to fraction form
    5,355.47/7,389.88 = 2,997.02/x
  3. Step 3: Cross multiply
    5,355.47x = 7,389.88 × 2,997.02
  4. Step 4: Simplify right side
    5,355.47x = 22,147,573.72
  5. Step 5: Solve for x
    x = 22,147,573.72/5,355.47
  6. Step 6: Final answer
    x = 4,135.51

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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.