Home / 2,223.60-3,325.68-1,815.36

Finding the Fourth Proportional to 2,223.60, 3,325.68 and 1,815.36

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Solution

The fourth proportional to 2,223.60, 3,325.68 and 1,815.36 is: 2,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.60 : 3,325.68 = 1,815.36 : x
  2. Step 2: Convert to fraction form
    2,223.60/3,325.68 = 1,815.36/x
  3. Step 3: Cross multiply
    2,223.60x = 3,325.68 × 1,815.36
  4. Step 4: Simplify right side
    2,223.60x = 6,037,306.44
  5. Step 5: Solve for x
    x = 6,037,306.44/2,223.60
  6. Step 6: Final answer
    x = 2,715.10

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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.