Home / 5,815.10-8,722.62-2,354.78

Finding the Fourth Proportional to 5,815.10, 8,722.62 and 2,354.78

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Solution

The fourth proportional to 5,815.10, 8,722.62 and 2,354.78 is: 3,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.10 : 8,722.62 = 2,354.78 : x
  2. Step 2: Convert to fraction form
    5,815.10/8,722.62 = 2,354.78/x
  3. Step 3: Cross multiply
    5,815.10x = 8,722.62 × 2,354.78
  4. Step 4: Simplify right side
    5,815.10x = 20,539,851.12
  5. Step 5: Solve for x
    x = 20,539,851.12/5,815.10
  6. Step 6: Final answer
    x = 3,532.16

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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.