Home / 3,069.16-4,605.10-1,120.91

Finding the Fourth Proportional to 3,069.16, 4,605.10 and 1,120.91

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Solution

The fourth proportional to 3,069.16, 4,605.10 and 1,120.91 is: 1,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.16 : 4,605.10 = 1,120.91 : x
  2. Step 2: Convert to fraction form
    3,069.16/4,605.10 = 1,120.91/x
  3. Step 3: Cross multiply
    3,069.16x = 4,605.10 × 1,120.91
  4. Step 4: Simplify right side
    3,069.16x = 5,161,876.81
  5. Step 5: Solve for x
    x = 5,161,876.81/3,069.16
  6. Step 6: Final answer
    x = 1,681.85

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1.5x scale

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.