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Finding the Fourth Proportional to 5,554.88, 7,665.72 and 3,070.88

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Solution

The fourth proportional to 5,554.88, 7,665.72 and 3,070.88 is: 4,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.88 : 7,665.72 = 3,070.88 : x
  2. Step 2: Convert to fraction form
    5,554.88/7,665.72 = 3,070.88/x
  3. Step 3: Cross multiply
    5,554.88x = 7,665.72 × 3,070.88
  4. Step 4: Simplify right side
    5,554.88x = 23,540,506.23
  5. Step 5: Solve for x
    x = 23,540,506.23/5,554.88
  6. Step 6: Final answer
    x = 4,237.81

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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.