Home / 1,653.67-2,281.85-945.44

Finding the Fourth Proportional to 1,653.67, 2,281.85 and 945.44

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Solution

The fourth proportional to 1,653.67, 2,281.85 and 945.44 is: 1,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.67 : 2,281.85 = 945.44 : x
  2. Step 2: Convert to fraction form
    1,653.67/2,281.85 = 945.44/x
  3. Step 3: Cross multiply
    1,653.67x = 2,281.85 × 945.44
  4. Step 4: Simplify right side
    1,653.67x = 2,157,353.55
  5. Step 5: Solve for x
    x = 2,157,353.55/1,653.67
  6. Step 6: Final answer
    x = 1,304.59

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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.