Home / 4,777.05-7,161.49-1,813.84

Finding the Fourth Proportional to 4,777.05, 7,161.49 and 1,813.84

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Solution

The fourth proportional to 4,777.05, 7,161.49 and 1,813.84 is: 2,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,777.05 : 7,161.49 = 1,813.84 : x
  2. Step 2: Convert to fraction form
    4,777.05/7,161.49 = 1,813.84/x
  3. Step 3: Cross multiply
    4,777.05x = 7,161.49 × 1,813.84
  4. Step 4: Simplify right side
    4,777.05x = 12,989,774.58
  5. Step 5: Solve for x
    x = 12,989,774.58/4,777.05
  6. Step 6: Final answer
    x = 2,719.20

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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.