Home / 1,395.27-2,090.97-614.10

Finding the Fourth Proportional to 1,395.27, 2,090.97 and 614.10

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Solution

The fourth proportional to 1,395.27, 2,090.97 and 614.10 is: 920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.27 : 2,090.97 = 614.10 : x
  2. Step 2: Convert to fraction form
    1,395.27/2,090.97 = 614.10/x
  3. Step 3: Cross multiply
    1,395.27x = 2,090.97 × 614.10
  4. Step 4: Simplify right side
    1,395.27x = 1,284,074.25
  5. Step 5: Solve for x
    x = 1,284,074.25/1,395.27
  6. Step 6: Final answer
    x = 920.30

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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.