Home / 2,098.22-3,148.55-1,985.63

Finding the Fourth Proportional to 2,098.22, 3,148.55 and 1,985.63

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Solution

The fourth proportional to 2,098.22, 3,148.55 and 1,985.63 is: 2,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.22 : 3,148.55 = 1,985.63 : x
  2. Step 2: Convert to fraction form
    2,098.22/3,148.55 = 1,985.63/x
  3. Step 3: Cross multiply
    2,098.22x = 3,148.55 × 1,985.63
  4. Step 4: Simplify right side
    2,098.22x = 6,251,855.34
  5. Step 5: Solve for x
    x = 6,251,855.34/2,098.22
  6. Step 6: Final answer
    x = 2,979.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.