Home / 2,155.60-2,971.65-1,446.18

Finding the Fourth Proportional to 2,155.60, 2,971.65 and 1,446.18

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Solution

The fourth proportional to 2,155.60, 2,971.65 and 1,446.18 is: 1,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.60 : 2,971.65 = 1,446.18 : x
  2. Step 2: Convert to fraction form
    2,155.60/2,971.65 = 1,446.18/x
  3. Step 3: Cross multiply
    2,155.60x = 2,971.65 × 1,446.18
  4. Step 4: Simplify right side
    2,155.60x = 4,297,540.80
  5. Step 5: Solve for x
    x = 4,297,540.80/2,155.60
  6. Step 6: Final answer
    x = 1,993.66

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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.