Home / 4,901.91-6,764.60-2,987.18

Finding the Fourth Proportional to 4,901.91, 6,764.60 and 2,987.18

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Solution

The fourth proportional to 4,901.91, 6,764.60 and 2,987.18 is: 4,122.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.91 : 6,764.60 = 2,987.18 : x
  2. Step 2: Convert to fraction form
    4,901.91/6,764.60 = 2,987.18/x
  3. Step 3: Cross multiply
    4,901.91x = 6,764.60 × 2,987.18
  4. Step 4: Simplify right side
    4,901.91x = 20,207,029.07
  5. Step 5: Solve for x
    x = 20,207,029.07/4,901.91
  6. Step 6: Final answer
    x = 4,122.28

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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.