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Finding the Fourth Proportional to 1,878.62, 2,816.96 and 1,001.61

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Solution

The fourth proportional to 1,878.62, 2,816.96 and 1,001.61 is: 1,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.62 : 2,816.96 = 1,001.61 : x
  2. Step 2: Convert to fraction form
    1,878.62/2,816.96 = 1,001.61/x
  3. Step 3: Cross multiply
    1,878.62x = 2,816.96 × 1,001.61
  4. Step 4: Simplify right side
    1,878.62x = 2,821,495.31
  5. Step 5: Solve for x
    x = 2,821,495.31/1,878.62
  6. Step 6: Final answer
    x = 1,501.90

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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.