Home / 1,480.13-2,213.64-1,316.75

Finding the Fourth Proportional to 1,480.13, 2,213.64 and 1,316.75

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Solution

The fourth proportional to 1,480.13, 2,213.64 and 1,316.75 is: 1,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.13 : 2,213.64 = 1,316.75 : x
  2. Step 2: Convert to fraction form
    1,480.13/2,213.64 = 1,316.75/x
  3. Step 3: Cross multiply
    1,480.13x = 2,213.64 × 1,316.75
  4. Step 4: Simplify right side
    1,480.13x = 2,914,799.40
  5. Step 5: Solve for x
    x = 2,914,799.40/1,480.13
  6. Step 6: Final answer
    x = 1,969.29

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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.