Home / 2,810.05-3,877.85-1,551.11

Finding the Fourth Proportional to 2,810.05, 3,877.85 and 1,551.11

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Solution

The fourth proportional to 2,810.05, 3,877.85 and 1,551.11 is: 2,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.05 : 3,877.85 = 1,551.11 : x
  2. Step 2: Convert to fraction form
    2,810.05/3,877.85 = 1,551.11/x
  3. Step 3: Cross multiply
    2,810.05x = 3,877.85 × 1,551.11
  4. Step 4: Simplify right side
    2,810.05x = 6,014,951.49
  5. Step 5: Solve for x
    x = 6,014,951.49/2,810.05
  6. Step 6: Final answer
    x = 2,140.51

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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.