Home / 2,147.10-2,960.65-1,864.84

Finding the Fourth Proportional to 2,147.10, 2,960.65 and 1,864.84

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Solution

The fourth proportional to 2,147.10, 2,960.65 and 1,864.84 is: 2,571.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.10 : 2,960.65 = 1,864.84 : x
  2. Step 2: Convert to fraction form
    2,147.10/2,960.65 = 1,864.84/x
  3. Step 3: Cross multiply
    2,147.10x = 2,960.65 × 1,864.84
  4. Step 4: Simplify right side
    2,147.10x = 5,521,138.55
  5. Step 5: Solve for x
    x = 5,521,138.55/2,147.10
  6. Step 6: Final answer
    x = 2,571.44

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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.