Home / 2,664.38-3,675.50-1,781.36

Finding the Fourth Proportional to 2,664.38, 3,675.50 and 1,781.36

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Solution

The fourth proportional to 2,664.38, 3,675.50 and 1,781.36 is: 2,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.38 : 3,675.50 = 1,781.36 : x
  2. Step 2: Convert to fraction form
    2,664.38/3,675.50 = 1,781.36/x
  3. Step 3: Cross multiply
    2,664.38x = 3,675.50 × 1,781.36
  4. Step 4: Simplify right side
    2,664.38x = 6,547,388.68
  5. Step 5: Solve for x
    x = 6,547,388.68/2,664.38
  6. Step 6: Final answer
    x = 2,457.38

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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.