Home / 5,356.12-7,391.40-2,998.28

Finding the Fourth Proportional to 5,356.12, 7,391.40 and 2,998.28

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Solution

The fourth proportional to 5,356.12, 7,391.40 and 2,998.28 is: 4,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.12 : 7,391.40 = 2,998.28 : x
  2. Step 2: Convert to fraction form
    5,356.12/7,391.40 = 2,998.28/x
  3. Step 3: Cross multiply
    5,356.12x = 7,391.40 × 2,998.28
  4. Step 4: Simplify right side
    5,356.12x = 22,161,486.79
  5. Step 5: Solve for x
    x = 22,161,486.79/5,356.12
  6. Step 6: Final answer
    x = 4,137.60

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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.