Home / 5,539.11-7,651.43-5,145.45

Finding the Fourth Proportional to 5,539.11, 7,651.43 and 5,145.45

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Solution

The fourth proportional to 5,539.11, 7,651.43 and 5,145.45 is: 7,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.11 : 7,651.43 = 5,145.45 : x
  2. Step 2: Convert to fraction form
    5,539.11/7,651.43 = 5,145.45/x
  3. Step 3: Cross multiply
    5,539.11x = 7,651.43 × 5,145.45
  4. Step 4: Simplify right side
    5,539.11x = 39,370,050.49
  5. Step 5: Solve for x
    x = 39,370,050.49/5,539.11
  6. Step 6: Final answer
    x = 7,107.65

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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.