Home / 2,869.80-4,305.72-1,553.40

Finding the Fourth Proportional to 2,869.80, 4,305.72 and 1,553.40

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Solution

The fourth proportional to 2,869.80, 4,305.72 and 1,553.40 is: 2,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.80 : 4,305.72 = 1,553.40 : x
  2. Step 2: Convert to fraction form
    2,869.80/4,305.72 = 1,553.40/x
  3. Step 3: Cross multiply
    2,869.80x = 4,305.72 × 1,553.40
  4. Step 4: Simplify right side
    2,869.80x = 6,688,505.45
  5. Step 5: Solve for x
    x = 6,688,505.45/2,869.80
  6. Step 6: Final answer
    x = 2,330.65

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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.