Home / 1,845.30-2,545.40-1,181.92

Finding the Fourth Proportional to 1,845.30, 2,545.40 and 1,181.92

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Solution

The fourth proportional to 1,845.30, 2,545.40 and 1,181.92 is: 1,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.30 : 2,545.40 = 1,181.92 : x
  2. Step 2: Convert to fraction form
    1,845.30/2,545.40 = 1,181.92/x
  3. Step 3: Cross multiply
    1,845.30x = 2,545.40 × 1,181.92
  4. Step 4: Simplify right side
    1,845.30x = 3,008,459.17
  5. Step 5: Solve for x
    x = 3,008,459.17/1,845.30
  6. Step 6: Final answer
    x = 1,630.34

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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.