Home / 5,705.35-7,873.68-3,187.51

Finding the Fourth Proportional to 5,705.35, 7,873.68 and 3,187.51

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Solution

The fourth proportional to 5,705.35, 7,873.68 and 3,187.51 is: 4,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.35 : 7,873.68 = 3,187.51 : x
  2. Step 2: Convert to fraction form
    5,705.35/7,873.68 = 3,187.51/x
  3. Step 3: Cross multiply
    5,705.35x = 7,873.68 × 3,187.51
  4. Step 4: Simplify right side
    5,705.35x = 25,097,426.01
  5. Step 5: Solve for x
    x = 25,097,426.01/5,705.35
  6. Step 6: Final answer
    x = 4,398.93

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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.