Home / 1,888.15-2,819.49-1,542.15

Finding the Fourth Proportional to 1,888.15, 2,819.49 and 1,542.15

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Solution

The fourth proportional to 1,888.15, 2,819.49 and 1,542.15 is: 2,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.15 : 2,819.49 = 1,542.15 : x
  2. Step 2: Convert to fraction form
    1,888.15/2,819.49 = 1,542.15/x
  3. Step 3: Cross multiply
    1,888.15x = 2,819.49 × 1,542.15
  4. Step 4: Simplify right side
    1,888.15x = 4,348,076.50
  5. Step 5: Solve for x
    x = 4,348,076.50/1,888.15
  6. Step 6: Final answer
    x = 2,302.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.