Home / 1,680.95-2,519.79-1,065.35

Finding the Fourth Proportional to 1,680.95, 2,519.79 and 1,065.35

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Solution

The fourth proportional to 1,680.95, 2,519.79 and 1,065.35 is: 1,596.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.95 : 2,519.79 = 1,065.35 : x
  2. Step 2: Convert to fraction form
    1,680.95/2,519.79 = 1,065.35/x
  3. Step 3: Cross multiply
    1,680.95x = 2,519.79 × 1,065.35
  4. Step 4: Simplify right side
    1,680.95x = 2,684,445.68
  5. Step 5: Solve for x
    x = 2,684,445.68/1,680.95
  6. Step 6: Final answer
    x = 1,596.99

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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.