Home / 2,788.07-3,844.76-2,157.08

Finding the Fourth Proportional to 2,788.07, 3,844.76 and 2,157.08

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Solution

The fourth proportional to 2,788.07, 3,844.76 and 2,157.08 is: 2,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.07 : 3,844.76 = 2,157.08 : x
  2. Step 2: Convert to fraction form
    2,788.07/3,844.76 = 2,157.08/x
  3. Step 3: Cross multiply
    2,788.07x = 3,844.76 × 2,157.08
  4. Step 4: Simplify right side
    2,788.07x = 8,293,424.89
  5. Step 5: Solve for x
    x = 8,293,424.89/2,788.07
  6. Step 6: Final answer
    x = 2,974.62

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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.