Home / 5,436.57-8,158.86-2,478.36

Finding the Fourth Proportional to 5,436.57, 8,158.86 and 2,478.36

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Solution

The fourth proportional to 5,436.57, 8,158.86 and 2,478.36 is: 3,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.57 : 8,158.86 = 2,478.36 : x
  2. Step 2: Convert to fraction form
    5,436.57/8,158.86 = 2,478.36/x
  3. Step 3: Cross multiply
    5,436.57x = 8,158.86 × 2,478.36
  4. Step 4: Simplify right side
    5,436.57x = 20,220,592.27
  5. Step 5: Solve for x
    x = 20,220,592.27/5,436.57
  6. Step 6: Final answer
    x = 3,719.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.