Home / 7,405.74-11,108.55-1,859.04

Finding the Fourth Proportional to 7,405.74, 11,108.55 and 1,859.04

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Solution

The fourth proportional to 7,405.74, 11,108.55 and 1,859.04 is: 2,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.74 : 11,108.55 = 1,859.04 : x
  2. Step 2: Convert to fraction form
    7,405.74/11,108.55 = 1,859.04/x
  3. Step 3: Cross multiply
    7,405.74x = 11,108.55 × 1,859.04
  4. Step 4: Simplify right side
    7,405.74x = 20,651,238.79
  5. Step 5: Solve for x
    x = 20,651,238.79/7,405.74
  6. Step 6: Final answer
    x = 2,788.54

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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.