Home / 1,748.18-2,412.38-962.21

Finding the Fourth Proportional to 1,748.18, 2,412.38 and 962.21

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Solution

The fourth proportional to 1,748.18, 2,412.38 and 962.21 is: 1,327.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.18 : 2,412.38 = 962.21 : x
  2. Step 2: Convert to fraction form
    1,748.18/2,412.38 = 962.21/x
  3. Step 3: Cross multiply
    1,748.18x = 2,412.38 × 962.21
  4. Step 4: Simplify right side
    1,748.18x = 2,321,224.60
  5. Step 5: Solve for x
    x = 2,321,224.60/1,748.18
  6. Step 6: Final answer
    x = 1,327.79

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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.