Home / 5,356.28-7,391.58-2,998.40

Finding the Fourth Proportional to 5,356.28, 7,391.58 and 2,998.40

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Solution

The fourth proportional to 5,356.28, 7,391.58 and 2,998.40 is: 4,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.28 : 7,391.58 = 2,998.40 : x
  2. Step 2: Convert to fraction form
    5,356.28/7,391.58 = 2,998.40/x
  3. Step 3: Cross multiply
    5,356.28x = 7,391.58 × 2,998.40
  4. Step 4: Simplify right side
    5,356.28x = 22,162,913.47
  5. Step 5: Solve for x
    x = 22,162,913.47/5,356.28
  6. Step 6: Final answer
    x = 4,137.74

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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.