Home / 5,436.48-8,153.80-1,540.20

Finding the Fourth Proportional to 5,436.48, 8,153.80 and 1,540.20

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Solution

The fourth proportional to 5,436.48, 8,153.80 and 1,540.20 is: 2,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.48 : 8,153.80 = 1,540.20 : x
  2. Step 2: Convert to fraction form
    5,436.48/8,153.80 = 1,540.20/x
  3. Step 3: Cross multiply
    5,436.48x = 8,153.80 × 1,540.20
  4. Step 4: Simplify right side
    5,436.48x = 12,558,482.76
  5. Step 5: Solve for x
    x = 12,558,482.76/5,436.48
  6. Step 6: Final answer
    x = 2,310.04

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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.