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Finding the Fourth Proportional to 1,579.03, 2,178.98 and 880.27

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Solution

The fourth proportional to 1,579.03, 2,178.98 and 880.27 is: 1,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.03 : 2,178.98 = 880.27 : x
  2. Step 2: Convert to fraction form
    1,579.03/2,178.98 = 880.27/x
  3. Step 3: Cross multiply
    1,579.03x = 2,178.98 × 880.27
  4. Step 4: Simplify right side
    1,579.03x = 1,918,084.18
  5. Step 5: Solve for x
    x = 1,918,084.18/1,579.03
  6. Step 6: Final answer
    x = 1,214.72

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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.