Home / 1,461.60-2,189.55-1,297.98

Finding the Fourth Proportional to 1,461.60, 2,189.55 and 1,297.98

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Solution

The fourth proportional to 1,461.60, 2,189.55 and 1,297.98 is: 1,944.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.60 : 2,189.55 = 1,297.98 : x
  2. Step 2: Convert to fraction form
    1,461.60/2,189.55 = 1,297.98/x
  3. Step 3: Cross multiply
    1,461.60x = 2,189.55 × 1,297.98
  4. Step 4: Simplify right side
    1,461.60x = 2,841,992.11
  5. Step 5: Solve for x
    x = 2,841,992.11/1,461.60
  6. Step 6: Final answer
    x = 1,944.44

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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.