Home / 5,055.90-6,977.66-2,818.14

Finding the Fourth Proportional to 5,055.90, 6,977.66 and 2,818.14

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Solution

The fourth proportional to 5,055.90, 6,977.66 and 2,818.14 is: 3,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.90 : 6,977.66 = 2,818.14 : x
  2. Step 2: Convert to fraction form
    5,055.90/6,977.66 = 2,818.14/x
  3. Step 3: Cross multiply
    5,055.90x = 6,977.66 × 2,818.14
  4. Step 4: Simplify right side
    5,055.90x = 19,664,022.75
  5. Step 5: Solve for x
    x = 19,664,022.75/5,055.90
  6. Step 6: Final answer
    x = 3,889.32

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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.