Home / 2,547.20-3,828.45-2,111.33

Finding the Fourth Proportional to 2,547.20, 3,828.45 and 2,111.33

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Solution

The fourth proportional to 2,547.20, 3,828.45 and 2,111.33 is: 3,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.20 : 3,828.45 = 2,111.33 : x
  2. Step 2: Convert to fraction form
    2,547.20/3,828.45 = 2,111.33/x
  3. Step 3: Cross multiply
    2,547.20x = 3,828.45 × 2,111.33
  4. Step 4: Simplify right side
    2,547.20x = 8,083,121.34
  5. Step 5: Solve for x
    x = 8,083,121.34/2,547.20
  6. Step 6: Final answer
    x = 3,173.34

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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.