Home / 4,869.04-6,721.38-2,879.66

Finding the Fourth Proportional to 4,869.04, 6,721.38 and 2,879.66

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Solution

The fourth proportional to 4,869.04, 6,721.38 and 2,879.66 is: 3,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.04 : 6,721.38 = 2,879.66 : x
  2. Step 2: Convert to fraction form
    4,869.04/6,721.38 = 2,879.66/x
  3. Step 3: Cross multiply
    4,869.04x = 6,721.38 × 2,879.66
  4. Step 4: Simplify right side
    4,869.04x = 19,355,315.39
  5. Step 5: Solve for x
    x = 19,355,315.39/4,869.04
  6. Step 6: Final answer
    x = 3,975.18

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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.