Home / 4,991.21-6,888.50-4,150.46

Finding the Fourth Proportional to 4,991.21, 6,888.50 and 4,150.46

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Solution

The fourth proportional to 4,991.21, 6,888.50 and 4,150.46 is: 5,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.21 : 6,888.50 = 4,150.46 : x
  2. Step 2: Convert to fraction form
    4,991.21/6,888.50 = 4,150.46/x
  3. Step 3: Cross multiply
    4,991.21x = 6,888.50 × 4,150.46
  4. Step 4: Simplify right side
    4,991.21x = 28,590,388.52
  5. Step 5: Solve for x
    x = 28,590,388.52/4,991.21
  6. Step 6: Final answer
    x = 5,728.15

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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.