Home / 2,388.93-3,287.75-2,020.74

Finding the Fourth Proportional to 2,388.93, 3,287.75 and 2,020.74

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Solution

The fourth proportional to 2,388.93, 3,287.75 and 2,020.74 is: 2,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.93 : 3,287.75 = 2,020.74 : x
  2. Step 2: Convert to fraction form
    2,388.93/3,287.75 = 2,020.74/x
  3. Step 3: Cross multiply
    2,388.93x = 3,287.75 × 2,020.74
  4. Step 4: Simplify right side
    2,388.93x = 6,643,677.83
  5. Step 5: Solve for x
    x = 6,643,677.83/2,388.93
  6. Step 6: Final answer
    x = 2,781.03

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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.