Home / 2,161.89-2,984.65-1,454.76

Finding the Fourth Proportional to 2,161.89, 2,984.65 and 1,454.76

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Solution

The fourth proportional to 2,161.89, 2,984.65 and 1,454.76 is: 2,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.89 : 2,984.65 = 1,454.76 : x
  2. Step 2: Convert to fraction form
    2,161.89/2,984.65 = 1,454.76/x
  3. Step 3: Cross multiply
    2,161.89x = 2,984.65 × 1,454.76
  4. Step 4: Simplify right side
    2,161.89x = 4,341,945.80
  5. Step 5: Solve for x
    x = 4,341,945.80/2,161.89
  6. Step 6: Final answer
    x = 2,008.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.