Home / 4,976.48-6,867.80-2,988.12

Finding the Fourth Proportional to 4,976.48, 6,867.80 and 2,988.12

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Solution

The fourth proportional to 4,976.48, 6,867.80 and 2,988.12 is: 4,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.48 : 6,867.80 = 2,988.12 : x
  2. Step 2: Convert to fraction form
    4,976.48/6,867.80 = 2,988.12/x
  3. Step 3: Cross multiply
    4,976.48x = 6,867.80 × 2,988.12
  4. Step 4: Simplify right side
    4,976.48x = 20,521,810.54
  5. Step 5: Solve for x
    x = 20,521,810.54/4,976.48
  6. Step 6: Final answer
    x = 4,123.76

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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.