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Finding the Fourth Proportional to 6,530.40, 9,806.40 and 4,348.80

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Solution

The fourth proportional to 6,530.40, 9,806.40 and 4,348.80 is: 6,530.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,530.40 : 9,806.40 = 4,348.80 : x
  2. Step 2: Convert to fraction form
    6,530.40/9,806.40 = 4,348.80/x
  3. Step 3: Cross multiply
    6,530.40x = 9,806.40 × 4,348.80
  4. Step 4: Simplify right side
    6,530.40x = 42,646,072.32
  5. Step 5: Solve for x
    x = 42,646,072.32/6,530.40
  6. Step 6: Final answer
    x = 6,530.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.