Home / 3,315.78-4,579.29-2,074.50

Finding the Fourth Proportional to 3,315.78, 4,579.29 and 2,074.50

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Solution

The fourth proportional to 3,315.78, 4,579.29 and 2,074.50 is: 2,865.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.78 : 4,579.29 = 2,074.50 : x
  2. Step 2: Convert to fraction form
    3,315.78/4,579.29 = 2,074.50/x
  3. Step 3: Cross multiply
    3,315.78x = 4,579.29 × 2,074.50
  4. Step 4: Simplify right side
    3,315.78x = 9,499,737.11
  5. Step 5: Solve for x
    x = 9,499,737.11/3,315.78
  6. Step 6: Final answer
    x = 2,865.01

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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.