Home / 4,100.85-5,658.95-2,421.88

Finding the Fourth Proportional to 4,100.85, 5,658.95 and 2,421.88

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Solution

The fourth proportional to 4,100.85, 5,658.95 and 2,421.88 is: 3,342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,100.85 : 5,658.95 = 2,421.88 : x
  2. Step 2: Convert to fraction form
    4,100.85/5,658.95 = 2,421.88/x
  3. Step 3: Cross multiply
    4,100.85x = 5,658.95 × 2,421.88
  4. Step 4: Simplify right side
    4,100.85x = 13,705,297.83
  5. Step 5: Solve for x
    x = 13,705,297.83/4,100.85
  6. Step 6: Final answer
    x = 3,342.06

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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.