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Finding the Fourth Proportional to 7,790.34, 10,747.16 and 4,806.30

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Solution

The fourth proportional to 7,790.34, 10,747.16 and 4,806.30 is: 6,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.34 : 10,747.16 = 4,806.30 : x
  2. Step 2: Convert to fraction form
    7,790.34/10,747.16 = 4,806.30/x
  3. Step 3: Cross multiply
    7,790.34x = 10,747.16 × 4,806.30
  4. Step 4: Simplify right side
    7,790.34x = 51,654,075.11
  5. Step 5: Solve for x
    x = 51,654,075.11/7,790.34
  6. Step 6: Final answer
    x = 6,630.53

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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.