Home / 1,682.64-2,319.95-1,084.11

Finding the Fourth Proportional to 1,682.64, 2,319.95 and 1,084.11

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Solution

The fourth proportional to 1,682.64, 2,319.95 and 1,084.11 is: 1,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.64 : 2,319.95 = 1,084.11 : x
  2. Step 2: Convert to fraction form
    1,682.64/2,319.95 = 1,084.11/x
  3. Step 3: Cross multiply
    1,682.64x = 2,319.95 × 1,084.11
  4. Step 4: Simplify right side
    1,682.64x = 2,515,075.57
  5. Step 5: Solve for x
    x = 2,515,075.57/1,682.64
  6. Step 6: Final answer
    x = 1,494.72

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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.