Home / 1,081.04-1,621.56-503.52

Finding the Fourth Proportional to 1,081.04, 1,621.56 and 503.52

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Solution

The fourth proportional to 1,081.04, 1,621.56 and 503.52 is: 755.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.04 : 1,621.56 = 503.52 : x
  2. Step 2: Convert to fraction form
    1,081.04/1,621.56 = 503.52/x
  3. Step 3: Cross multiply
    1,081.04x = 1,621.56 × 503.52
  4. Step 4: Simplify right side
    1,081.04x = 816,487.89
  5. Step 5: Solve for x
    x = 816,487.89/1,081.04
  6. Step 6: Final answer
    x = 755.28

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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.