Home / 2,845.61-4,266.57-1,965.65

Finding the Fourth Proportional to 2,845.61, 4,266.57 and 1,965.65

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Solution

The fourth proportional to 2,845.61, 4,266.57 and 1,965.65 is: 2,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.61 : 4,266.57 = 1,965.65 : x
  2. Step 2: Convert to fraction form
    2,845.61/4,266.57 = 1,965.65/x
  3. Step 3: Cross multiply
    2,845.61x = 4,266.57 × 1,965.65
  4. Step 4: Simplify right side
    2,845.61x = 8,386,583.32
  5. Step 5: Solve for x
    x = 8,386,583.32/2,845.61
  6. Step 6: Final answer
    x = 2,947.20

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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.