Home / 6,860.85-10,290.87-4,228.86

Finding the Fourth Proportional to 6,860.85, 10,290.87 and 4,228.86

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Solution

The fourth proportional to 6,860.85, 10,290.87 and 4,228.86 is: 6,343.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.85 : 10,290.87 = 4,228.86 : x
  2. Step 2: Convert to fraction form
    6,860.85/10,290.87 = 4,228.86/x
  3. Step 3: Cross multiply
    6,860.85x = 10,290.87 × 4,228.86
  4. Step 4: Simplify right side
    6,860.85x = 43,518,648.51
  5. Step 5: Solve for x
    x = 43,518,648.51/6,860.85
  6. Step 6: Final answer
    x = 6,343.04

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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.