Home / 1,477.45-2,039.11-1,122.79

Finding the Fourth Proportional to 1,477.45, 2,039.11 and 1,122.79

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Solution

The fourth proportional to 1,477.45, 2,039.11 and 1,122.79 is: 1,549.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.45 : 2,039.11 = 1,122.79 : x
  2. Step 2: Convert to fraction form
    1,477.45/2,039.11 = 1,122.79/x
  3. Step 3: Cross multiply
    1,477.45x = 2,039.11 × 1,122.79
  4. Step 4: Simplify right side
    1,477.45x = 2,289,492.32
  5. Step 5: Solve for x
    x = 2,289,492.32/1,477.45
  6. Step 6: Final answer
    x = 1,549.62

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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.