Home / 5,471.80-8,205.78-1,575.16

Finding the Fourth Proportional to 5,471.80, 8,205.78 and 1,575.16

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Solution

The fourth proportional to 5,471.80, 8,205.78 and 1,575.16 is: 2,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,471.80 : 8,205.78 = 1,575.16 : x
  2. Step 2: Convert to fraction form
    5,471.80/8,205.78 = 1,575.16/x
  3. Step 3: Cross multiply
    5,471.80x = 8,205.78 × 1,575.16
  4. Step 4: Simplify right side
    5,471.80x = 12,925,416.42
  5. Step 5: Solve for x
    x = 12,925,416.42/5,471.80
  6. Step 6: Final answer
    x = 2,362.19

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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.