Home / 5,436.45-8,154.68-1,540.89

Finding the Fourth Proportional to 5,436.45, 8,154.68 and 1,540.89

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Solution

The fourth proportional to 5,436.45, 8,154.68 and 1,540.89 is: 2,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.45 : 8,154.68 = 1,540.89 : x
  2. Step 2: Convert to fraction form
    5,436.45/8,154.68 = 1,540.89/x
  3. Step 3: Cross multiply
    5,436.45x = 8,154.68 × 1,540.89
  4. Step 4: Simplify right side
    5,436.45x = 12,565,457.16
  5. Step 5: Solve for x
    x = 12,565,457.16/5,436.45
  6. Step 6: Final answer
    x = 2,311.34

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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.