Home / 1,480.12-2,214.70-1,217.68

Finding the Fourth Proportional to 1,480.12, 2,214.70 and 1,217.68

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Solution

The fourth proportional to 1,480.12, 2,214.70 and 1,217.68 is: 1,822.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.12 : 2,214.70 = 1,217.68 : x
  2. Step 2: Convert to fraction form
    1,480.12/2,214.70 = 1,217.68/x
  3. Step 3: Cross multiply
    1,480.12x = 2,214.70 × 1,217.68
  4. Step 4: Simplify right side
    1,480.12x = 2,696,795.90
  5. Step 5: Solve for x
    x = 2,696,795.90/1,480.12
  6. Step 6: Final answer
    x = 1,822.01

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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.