Home / 2,630.21-3,945.85-898.97

Finding the Fourth Proportional to 2,630.21, 3,945.85 and 898.97

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Solution

The fourth proportional to 2,630.21, 3,945.85 and 898.97 is: 1,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.21 : 3,945.85 = 898.97 : x
  2. Step 2: Convert to fraction form
    2,630.21/3,945.85 = 898.97/x
  3. Step 3: Cross multiply
    2,630.21x = 3,945.85 × 898.97
  4. Step 4: Simplify right side
    2,630.21x = 3,547,178.80
  5. Step 5: Solve for x
    x = 3,547,178.80/2,630.21
  6. Step 6: Final answer
    x = 1,348.63

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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.