Home / 7,539.17-10,403.78-4,181.85

Finding the Fourth Proportional to 7,539.17, 10,403.78 and 4,181.85

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Solution

The fourth proportional to 7,539.17, 10,403.78 and 4,181.85 is: 5,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.17 : 10,403.78 = 4,181.85 : x
  2. Step 2: Convert to fraction form
    7,539.17/10,403.78 = 4,181.85/x
  3. Step 3: Cross multiply
    7,539.17x = 10,403.78 × 4,181.85
  4. Step 4: Simplify right side
    7,539.17x = 43,507,026.48
  5. Step 5: Solve for x
    x = 43,507,026.48/7,539.17
  6. Step 6: Final answer
    x = 5,770.80

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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.