Home / 2,069.16-2,855.58-1,137.72

Finding the Fourth Proportional to 2,069.16, 2,855.58 and 1,137.72

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Solution

The fourth proportional to 2,069.16, 2,855.58 and 1,137.72 is: 1,570.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.16 : 2,855.58 = 1,137.72 : x
  2. Step 2: Convert to fraction form
    2,069.16/2,855.58 = 1,137.72/x
  3. Step 3: Cross multiply
    2,069.16x = 2,855.58 × 1,137.72
  4. Step 4: Simplify right side
    2,069.16x = 3,248,850.48
  5. Step 5: Solve for x
    x = 3,248,850.48/2,069.16
  6. Step 6: Final answer
    x = 1,570.13

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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.