Home / 3,551.79-4,900.89-2,135.13

Finding the Fourth Proportional to 3,551.79, 4,900.89 and 2,135.13

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Solution

The fourth proportional to 3,551.79, 4,900.89 and 2,135.13 is: 2,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.79 : 4,900.89 = 2,135.13 : x
  2. Step 2: Convert to fraction form
    3,551.79/4,900.89 = 2,135.13/x
  3. Step 3: Cross multiply
    3,551.79x = 4,900.89 × 2,135.13
  4. Step 4: Simplify right side
    3,551.79x = 10,464,037.27
  5. Step 5: Solve for x
    x = 10,464,037.27/3,551.79
  6. Step 6: Final answer
    x = 2,946.13

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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.