Home / 2,117.85-2,942.83-2,095.07

Finding the Fourth Proportional to 2,117.85, 2,942.83 and 2,095.07

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Solution

The fourth proportional to 2,117.85, 2,942.83 and 2,095.07 is: 2,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.85 : 2,942.83 = 2,095.07 : x
  2. Step 2: Convert to fraction form
    2,117.85/2,942.83 = 2,095.07/x
  3. Step 3: Cross multiply
    2,117.85x = 2,942.83 × 2,095.07
  4. Step 4: Simplify right side
    2,117.85x = 6,165,422.75
  5. Step 5: Solve for x
    x = 6,165,422.75/2,117.85
  6. Step 6: Final answer
    x = 2,911.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.