Home / 5,535.90-7,639.27-3,145.56

Finding the Fourth Proportional to 5,535.90, 7,639.27 and 3,145.56

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Solution

The fourth proportional to 5,535.90, 7,639.27 and 3,145.56 is: 4,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.90 : 7,639.27 = 3,145.56 : x
  2. Step 2: Convert to fraction form
    5,535.90/7,639.27 = 3,145.56/x
  3. Step 3: Cross multiply
    5,535.90x = 7,639.27 × 3,145.56
  4. Step 4: Simplify right side
    5,535.90x = 24,029,782.14
  5. Step 5: Solve for x
    x = 24,029,782.14/5,535.90
  6. Step 6: Final answer
    x = 4,340.72

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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.