Home / 4,842.80-6,686.26-3,721.70

Finding the Fourth Proportional to 4,842.80, 6,686.26 and 3,721.70

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Solution

The fourth proportional to 4,842.80, 6,686.26 and 3,721.70 is: 5,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.80 : 6,686.26 = 3,721.70 : x
  2. Step 2: Convert to fraction form
    4,842.80/6,686.26 = 3,721.70/x
  3. Step 3: Cross multiply
    4,842.80x = 6,686.26 × 3,721.70
  4. Step 4: Simplify right side
    4,842.80x = 24,884,253.84
  5. Step 5: Solve for x
    x = 24,884,253.84/4,842.80
  6. Step 6: Final answer
    x = 5,138.40

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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.