Home / 4,991.57-6,887.60-2,867.19

Finding the Fourth Proportional to 4,991.57, 6,887.60 and 2,867.19

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Solution

The fourth proportional to 4,991.57, 6,887.60 and 2,867.19 is: 3,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.57 : 6,887.60 = 2,867.19 : x
  2. Step 2: Convert to fraction form
    4,991.57/6,887.60 = 2,867.19/x
  3. Step 3: Cross multiply
    4,991.57x = 6,887.60 × 2,867.19
  4. Step 4: Simplify right side
    4,991.57x = 19,748,065.01
  5. Step 5: Solve for x
    x = 19,748,065.01/4,991.57
  6. Step 6: Final answer
    x = 3,956.29

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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.