Home / 2,868.37-3,959.18-1,873.80

Finding the Fourth Proportional to 2,868.37, 3,959.18 and 1,873.80

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Solution

The fourth proportional to 2,868.37, 3,959.18 and 1,873.80 is: 2,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.37 : 3,959.18 = 1,873.80 : x
  2. Step 2: Convert to fraction form
    2,868.37/3,959.18 = 1,873.80/x
  3. Step 3: Cross multiply
    2,868.37x = 3,959.18 × 1,873.80
  4. Step 4: Simplify right side
    2,868.37x = 7,418,711.48
  5. Step 5: Solve for x
    x = 7,418,711.48/2,868.37
  6. Step 6: Final answer
    x = 2,586.39

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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.