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Finding the Fourth Proportional to 5,600, 7,728.48 and 3,116.48

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Solution

The fourth proportional to 5,600, 7,728.48 and 3,116.48 is: 4,301.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600 : 7,728.48 = 3,116.48 : x
  2. Step 2: Convert to fraction form
    5,600/7,728.48 = 3,116.48/x
  3. Step 3: Cross multiply
    5,600x = 7,728.48 × 3,116.48
  4. Step 4: Simplify right side
    5,600x = 24,085,653.35
  5. Step 5: Solve for x
    x = 24,085,653.35/5,600
  6. Step 6: Final answer
    x = 4,301.01

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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.