Home / 1,631.90-2,251.58-1,002.66

Finding the Fourth Proportional to 1,631.90, 2,251.58 and 1,002.66

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Solution

The fourth proportional to 1,631.90, 2,251.58 and 1,002.66 is: 1,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.90 : 2,251.58 = 1,002.66 : x
  2. Step 2: Convert to fraction form
    1,631.90/2,251.58 = 1,002.66/x
  3. Step 3: Cross multiply
    1,631.90x = 2,251.58 × 1,002.66
  4. Step 4: Simplify right side
    1,631.90x = 2,257,564.19
  5. Step 5: Solve for x
    x = 2,257,564.19/1,631.90
  6. Step 6: Final answer
    x = 1,383.40

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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.