Home / 3,119.51-4,676.78-1,801.76

Finding the Fourth Proportional to 3,119.51, 4,676.78 and 1,801.76

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Solution

The fourth proportional to 3,119.51, 4,676.78 and 1,801.76 is: 2,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.51 : 4,676.78 = 1,801.76 : x
  2. Step 2: Convert to fraction form
    3,119.51/4,676.78 = 1,801.76/x
  3. Step 3: Cross multiply
    3,119.51x = 4,676.78 × 1,801.76
  4. Step 4: Simplify right side
    3,119.51x = 8,426,435.13
  5. Step 5: Solve for x
    x = 8,426,435.13/3,119.51
  6. Step 6: Final answer
    x = 2,701.20

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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.