Home / 2,218.17-3,059.49-1,377.99

Finding the Fourth Proportional to 2,218.17, 3,059.49 and 1,377.99

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Solution

The fourth proportional to 2,218.17, 3,059.49 and 1,377.99 is: 1,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.17 : 3,059.49 = 1,377.99 : x
  2. Step 2: Convert to fraction form
    2,218.17/3,059.49 = 1,377.99/x
  3. Step 3: Cross multiply
    2,218.17x = 3,059.49 × 1,377.99
  4. Step 4: Simplify right side
    2,218.17x = 4,215,946.63
  5. Step 5: Solve for x
    x = 4,215,946.63/2,218.17
  6. Step 6: Final answer
    x = 1,900.64

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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.