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Finding the Fourth Proportional to 6,539.55, 9,810.42 and 2,379.78

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Solution

The fourth proportional to 6,539.55, 9,810.42 and 2,379.78 is: 3,570.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.55 : 9,810.42 = 2,379.78 : x
  2. Step 2: Convert to fraction form
    6,539.55/9,810.42 = 2,379.78/x
  3. Step 3: Cross multiply
    6,539.55x = 9,810.42 × 2,379.78
  4. Step 4: Simplify right side
    6,539.55x = 23,346,641.31
  5. Step 5: Solve for x
    x = 23,346,641.31/6,539.55
  6. Step 6: Final answer
    x = 3,570.07

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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.