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Finding the Fourth Proportional to 1,873.47, 2,809.31 and 885.46

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Solution

The fourth proportional to 1,873.47, 2,809.31 and 885.46 is: 1,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.47 : 2,809.31 = 885.46 : x
  2. Step 2: Convert to fraction form
    1,873.47/2,809.31 = 885.46/x
  3. Step 3: Cross multiply
    1,873.47x = 2,809.31 × 885.46
  4. Step 4: Simplify right side
    1,873.47x = 2,487,542.17
  5. Step 5: Solve for x
    x = 2,487,542.17/1,873.47
  6. Step 6: Final answer
    x = 1,327.77

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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.