Home / 1,568.19-2,165.84-1,069.95

Finding the Fourth Proportional to 1,568.19, 2,165.84 and 1,069.95

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Solution

The fourth proportional to 1,568.19, 2,165.84 and 1,069.95 is: 1,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.19 : 2,165.84 = 1,069.95 : x
  2. Step 2: Convert to fraction form
    1,568.19/2,165.84 = 1,069.95/x
  3. Step 3: Cross multiply
    1,568.19x = 2,165.84 × 1,069.95
  4. Step 4: Simplify right side
    1,568.19x = 2,317,335.16
  5. Step 5: Solve for x
    x = 2,317,335.16/1,568.19
  6. Step 6: Final answer
    x = 1,477.71

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1.5x scale

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.