Home / 7,390.55-10,198.13-4,405.79

Finding the Fourth Proportional to 7,390.55, 10,198.13 and 4,405.79

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Solution

The fourth proportional to 7,390.55, 10,198.13 and 4,405.79 is: 6,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.55 : 10,198.13 = 4,405.79 : x
  2. Step 2: Convert to fraction form
    7,390.55/10,198.13 = 4,405.79/x
  3. Step 3: Cross multiply
    7,390.55x = 10,198.13 × 4,405.79
  4. Step 4: Simplify right side
    7,390.55x = 44,930,746.15
  5. Step 5: Solve for x
    x = 44,930,746.15/7,390.55
  6. Step 6: Final answer
    x = 6,079.49

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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.