Home / 2,991.36-4,118.63-2,714.55

Finding the Fourth Proportional to 2,991.36, 4,118.63 and 2,714.55

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Solution

The fourth proportional to 2,991.36, 4,118.63 and 2,714.55 is: 3,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.36 : 4,118.63 = 2,714.55 : x
  2. Step 2: Convert to fraction form
    2,991.36/4,118.63 = 2,714.55/x
  3. Step 3: Cross multiply
    2,991.36x = 4,118.63 × 2,714.55
  4. Step 4: Simplify right side
    2,991.36x = 11,180,213.49
  5. Step 5: Solve for x
    x = 11,180,213.49/2,991.36
  6. Step 6: Final answer
    x = 3,737.50

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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.