Home / 3,311.92-4,570.23-1,985.68

Finding the Fourth Proportional to 3,311.92, 4,570.23 and 1,985.68

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Solution

The fourth proportional to 3,311.92, 4,570.23 and 1,985.68 is: 2,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.92 : 4,570.23 = 1,985.68 : x
  2. Step 2: Convert to fraction form
    3,311.92/4,570.23 = 1,985.68/x
  3. Step 3: Cross multiply
    3,311.92x = 4,570.23 × 1,985.68
  4. Step 4: Simplify right side
    3,311.92x = 9,075,014.31
  5. Step 5: Solve for x
    x = 9,075,014.31/3,311.92
  6. Step 6: Final answer
    x = 2,740.11

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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.