Home / 3,616.98-4,991.71-2,124.36

Finding the Fourth Proportional to 3,616.98, 4,991.71 and 2,124.36

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Solution

The fourth proportional to 3,616.98, 4,991.71 and 2,124.36 is: 2,931.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.98 : 4,991.71 = 2,124.36 : x
  2. Step 2: Convert to fraction form
    3,616.98/4,991.71 = 2,124.36/x
  3. Step 3: Cross multiply
    3,616.98x = 4,991.71 × 2,124.36
  4. Step 4: Simplify right side
    3,616.98x = 10,604,164.10
  5. Step 5: Solve for x
    x = 10,604,164.10/3,616.98
  6. Step 6: Final answer
    x = 2,931.77

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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.