Home / 1,465.38-2,187.43-1,261.26

Finding the Fourth Proportional to 1,465.38, 2,187.43 and 1,261.26

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Solution

The fourth proportional to 1,465.38, 2,187.43 and 1,261.26 is: 1,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.38 : 2,187.43 = 1,261.26 : x
  2. Step 2: Convert to fraction form
    1,465.38/2,187.43 = 1,261.26/x
  3. Step 3: Cross multiply
    1,465.38x = 2,187.43 × 1,261.26
  4. Step 4: Simplify right side
    1,465.38x = 2,758,914.81
  5. Step 5: Solve for x
    x = 2,758,914.81/1,465.38
  6. Step 6: Final answer
    x = 1,882.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.