Home / 1,984.18-2,738.49-1,511.32

Finding the Fourth Proportional to 1,984.18, 2,738.49 and 1,511.32

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Solution

The fourth proportional to 1,984.18, 2,738.49 and 1,511.32 is: 2,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.18 : 2,738.49 = 1,511.32 : x
  2. Step 2: Convert to fraction form
    1,984.18/2,738.49 = 1,511.32/x
  3. Step 3: Cross multiply
    1,984.18x = 2,738.49 × 1,511.32
  4. Step 4: Simplify right side
    1,984.18x = 4,138,713.46
  5. Step 5: Solve for x
    x = 4,138,713.46/1,984.18
  6. Step 6: Final answer
    x = 2,085.86

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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.