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Finding the Fourth Proportional to 7,504.80, 11,256.18 and 1,958.58

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Solution

The fourth proportional to 7,504.80, 11,256.18 and 1,958.58 is: 2,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504.80 : 11,256.18 = 1,958.58 : x
  2. Step 2: Convert to fraction form
    7,504.80/11,256.18 = 1,958.58/x
  3. Step 3: Cross multiply
    7,504.80x = 11,256.18 × 1,958.58
  4. Step 4: Simplify right side
    7,504.80x = 22,046,129.02
  5. Step 5: Solve for x
    x = 22,046,129.02/7,504.80
  6. Step 6: Final answer
    x = 2,937.60

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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.