Home / 2,511.72-3,466.13-1,392.65

Finding the Fourth Proportional to 2,511.72, 3,466.13 and 1,392.65

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Solution

The fourth proportional to 2,511.72, 3,466.13 and 1,392.65 is: 1,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.72 : 3,466.13 = 1,392.65 : x
  2. Step 2: Convert to fraction form
    2,511.72/3,466.13 = 1,392.65/x
  3. Step 3: Cross multiply
    2,511.72x = 3,466.13 × 1,392.65
  4. Step 4: Simplify right side
    2,511.72x = 4,827,081.65
  5. Step 5: Solve for x
    x = 4,827,081.65/2,511.72
  6. Step 6: Final answer
    x = 1,921.82

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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.