Home / 2,656.83-3,985.25-1,097.72

Finding the Fourth Proportional to 2,656.83, 3,985.25 and 1,097.72

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Solution

The fourth proportional to 2,656.83, 3,985.25 and 1,097.72 is: 1,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.83 : 3,985.25 = 1,097.72 : x
  2. Step 2: Convert to fraction form
    2,656.83/3,985.25 = 1,097.72/x
  3. Step 3: Cross multiply
    2,656.83x = 3,985.25 × 1,097.72
  4. Step 4: Simplify right side
    2,656.83x = 4,374,688.63
  5. Step 5: Solve for x
    x = 4,374,688.63/2,656.83
  6. Step 6: Final answer
    x = 1,646.58

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Similar ratio
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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.