Home / 3,319.81-4,980.15-1,127.95

Finding the Fourth Proportional to 3,319.81, 4,980.15 and 1,127.95

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Solution

The fourth proportional to 3,319.81, 4,980.15 and 1,127.95 is: 1,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.81 : 4,980.15 = 1,127.95 : x
  2. Step 2: Convert to fraction form
    3,319.81/4,980.15 = 1,127.95/x
  3. Step 3: Cross multiply
    3,319.81x = 4,980.15 × 1,127.95
  4. Step 4: Simplify right side
    3,319.81x = 5,617,360.19
  5. Step 5: Solve for x
    x = 5,617,360.19/3,319.81
  6. Step 6: Final answer
    x = 1,692.07

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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.