Home / 3,647.90-5,470.50-2,869.42

Finding the Fourth Proportional to 3,647.90, 5,470.50 and 2,869.42

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Solution

The fourth proportional to 3,647.90, 5,470.50 and 2,869.42 is: 4,303.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.90 : 5,470.50 = 2,869.42 : x
  2. Step 2: Convert to fraction form
    3,647.90/5,470.50 = 2,869.42/x
  3. Step 3: Cross multiply
    3,647.90x = 5,470.50 × 2,869.42
  4. Step 4: Simplify right side
    3,647.90x = 15,697,162.11
  5. Step 5: Solve for x
    x = 15,697,162.11/3,647.90
  6. Step 6: Final answer
    x = 4,303.07

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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.