Home / 3,618.92-5,424.60-1,672.40

Finding the Fourth Proportional to 3,618.92, 5,424.60 and 1,672.40

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Solution

The fourth proportional to 3,618.92, 5,424.60 and 1,672.40 is: 2,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.92 : 5,424.60 = 1,672.40 : x
  2. Step 2: Convert to fraction form
    3,618.92/5,424.60 = 1,672.40/x
  3. Step 3: Cross multiply
    3,618.92x = 5,424.60 × 1,672.40
  4. Step 4: Simplify right side
    3,618.92x = 9,072,101.04
  5. Step 5: Solve for x
    x = 9,072,101.04/3,618.92
  6. Step 6: Final answer
    x = 2,506.85

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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.