Home / 1,447.08-2,168.01-1,217.40

Finding the Fourth Proportional to 1,447.08, 2,168.01 and 1,217.40

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Solution

The fourth proportional to 1,447.08, 2,168.01 and 1,217.40 is: 1,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.08 : 2,168.01 = 1,217.40 : x
  2. Step 2: Convert to fraction form
    1,447.08/2,168.01 = 1,217.40/x
  3. Step 3: Cross multiply
    1,447.08x = 2,168.01 × 1,217.40
  4. Step 4: Simplify right side
    1,447.08x = 2,639,335.37
  5. Step 5: Solve for x
    x = 2,639,335.37/1,447.08
  6. Step 6: Final answer
    x = 1,823.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.