Home / 2,171.15-2,994.18-1,630.63

Finding the Fourth Proportional to 2,171.15, 2,994.18 and 1,630.63

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Solution

The fourth proportional to 2,171.15, 2,994.18 and 1,630.63 is: 2,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.15 : 2,994.18 = 1,630.63 : x
  2. Step 2: Convert to fraction form
    2,171.15/2,994.18 = 1,630.63/x
  3. Step 3: Cross multiply
    2,171.15x = 2,994.18 × 1,630.63
  4. Step 4: Simplify right side
    2,171.15x = 4,882,397.36
  5. Step 5: Solve for x
    x = 4,882,397.36/2,171.15
  6. Step 6: Final answer
    x = 2,248.76

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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.