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Finding the Fourth Proportional to 7,888.30, 10,882.05 and 4,907.62

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Solution

The fourth proportional to 7,888.30, 10,882.05 and 4,907.62 is: 6,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.30 : 10,882.05 = 4,907.62 : x
  2. Step 2: Convert to fraction form
    7,888.30/10,882.05 = 4,907.62/x
  3. Step 3: Cross multiply
    7,888.30x = 10,882.05 × 4,907.62
  4. Step 4: Simplify right side
    7,888.30x = 53,404,966.22
  5. Step 5: Solve for x
    x = 53,404,966.22/7,888.30
  6. Step 6: Final answer
    x = 6,770.15

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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.