Home / 1,631.34-2,251.98-1,042.68

Finding the Fourth Proportional to 1,631.34, 2,251.98 and 1,042.68

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Solution

The fourth proportional to 1,631.34, 2,251.98 and 1,042.68 is: 1,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.34 : 2,251.98 = 1,042.68 : x
  2. Step 2: Convert to fraction form
    1,631.34/2,251.98 = 1,042.68/x
  3. Step 3: Cross multiply
    1,631.34x = 2,251.98 × 1,042.68
  4. Step 4: Simplify right side
    1,631.34x = 2,348,094.51
  5. Step 5: Solve for x
    x = 2,348,094.51/1,631.34
  6. Step 6: Final answer
    x = 1,439.37

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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.