Home / 4,991.36-7,487.22-1,871.05

Finding the Fourth Proportional to 4,991.36, 7,487.22 and 1,871.05

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Solution

The fourth proportional to 4,991.36, 7,487.22 and 1,871.05 is: 2,806.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.36 : 7,487.22 = 1,871.05 : x
  2. Step 2: Convert to fraction form
    4,991.36/7,487.22 = 1,871.05/x
  3. Step 3: Cross multiply
    4,991.36x = 7,487.22 × 1,871.05
  4. Step 4: Simplify right side
    4,991.36x = 14,008,925.54
  5. Step 5: Solve for x
    x = 14,008,925.54/4,991.36
  6. Step 6: Final answer
    x = 2,806.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.