Home / 2,777.87-4,167.35-1,316.23

Finding the Fourth Proportional to 2,777.87, 4,167.35 and 1,316.23

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Solution

The fourth proportional to 2,777.87, 4,167.35 and 1,316.23 is: 1,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.87 : 4,167.35 = 1,316.23 : x
  2. Step 2: Convert to fraction form
    2,777.87/4,167.35 = 1,316.23/x
  3. Step 3: Cross multiply
    2,777.87x = 4,167.35 × 1,316.23
  4. Step 4: Simplify right side
    2,777.87x = 5,485,191.09
  5. Step 5: Solve for x
    x = 5,485,191.09/2,777.87
  6. Step 6: Final answer
    x = 1,974.60

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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.