Home / 2,137.60-2,948.34-1,340.29

Finding the Fourth Proportional to 2,137.60, 2,948.34 and 1,340.29

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Solution

The fourth proportional to 2,137.60, 2,948.34 and 1,340.29 is: 1,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.60 : 2,948.34 = 1,340.29 : x
  2. Step 2: Convert to fraction form
    2,137.60/2,948.34 = 1,340.29/x
  3. Step 3: Cross multiply
    2,137.60x = 2,948.34 × 1,340.29
  4. Step 4: Simplify right side
    2,137.60x = 3,951,630.62
  5. Step 5: Solve for x
    x = 3,951,630.62/2,137.60
  6. Step 6: Final answer
    x = 1,848.63

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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.