Home / 2,860.50-3,943.45-2,152.46

Finding the Fourth Proportional to 2,860.50, 3,943.45 and 2,152.46

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Solution

The fourth proportional to 2,860.50, 3,943.45 and 2,152.46 is: 2,967.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.50 : 3,943.45 = 2,152.46 : x
  2. Step 2: Convert to fraction form
    2,860.50/3,943.45 = 2,152.46/x
  3. Step 3: Cross multiply
    2,860.50x = 3,943.45 × 2,152.46
  4. Step 4: Simplify right side
    2,860.50x = 8,488,118.39
  5. Step 5: Solve for x
    x = 8,488,118.39/2,860.50
  6. Step 6: Final answer
    x = 2,967.35

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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.