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Finding the Fourth Proportional to 5,603.01, 7,734.54 and 3,988.97

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Solution

The fourth proportional to 5,603.01, 7,734.54 and 3,988.97 is: 5,506.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.01 : 7,734.54 = 3,988.97 : x
  2. Step 2: Convert to fraction form
    5,603.01/7,734.54 = 3,988.97/x
  3. Step 3: Cross multiply
    5,603.01x = 7,734.54 × 3,988.97
  4. Step 4: Simplify right side
    5,603.01x = 30,852,809.35
  5. Step 5: Solve for x
    x = 30,852,809.35/5,603.01
  6. Step 6: Final answer
    x = 5,506.47

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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.