Home / 1,681.25-2,320.97-1,052.15

Finding the Fourth Proportional to 1,681.25, 2,320.97 and 1,052.15

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Solution

The fourth proportional to 1,681.25, 2,320.97 and 1,052.15 is: 1,452.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.25 : 2,320.97 = 1,052.15 : x
  2. Step 2: Convert to fraction form
    1,681.25/2,320.97 = 1,052.15/x
  3. Step 3: Cross multiply
    1,681.25x = 2,320.97 × 1,052.15
  4. Step 4: Simplify right side
    1,681.25x = 2,441,991.72
  5. Step 5: Solve for x
    x = 2,441,991.72/1,681.25
  6. Step 6: Final answer
    x = 1,452.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.