Home / 4,839.80-6,678.90-2,686.33

Finding the Fourth Proportional to 4,839.80, 6,678.90 and 2,686.33

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Solution

The fourth proportional to 4,839.80, 6,678.90 and 2,686.33 is: 3,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839.80 : 6,678.90 = 2,686.33 : x
  2. Step 2: Convert to fraction form
    4,839.80/6,678.90 = 2,686.33/x
  3. Step 3: Cross multiply
    4,839.80x = 6,678.90 × 2,686.33
  4. Step 4: Simplify right side
    4,839.80x = 17,941,712.74
  5. Step 5: Solve for x
    x = 17,941,712.74/4,839.80
  6. Step 6: Final answer
    x = 3,707.12

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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.