Home / 1,665.36-2,492.65-1,226.52

Finding the Fourth Proportional to 1,665.36, 2,492.65 and 1,226.52

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Solution

The fourth proportional to 1,665.36, 2,492.65 and 1,226.52 is: 1,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.36 : 2,492.65 = 1,226.52 : x
  2. Step 2: Convert to fraction form
    1,665.36/2,492.65 = 1,226.52/x
  3. Step 3: Cross multiply
    1,665.36x = 2,492.65 × 1,226.52
  4. Step 4: Simplify right side
    1,665.36x = 3,057,285.08
  5. Step 5: Solve for x
    x = 3,057,285.08/1,665.36
  6. Step 6: Final answer
    x = 1,835.81

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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.