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Finding the Fourth Proportional to 1,483.12, 2,223.93 and 495.58

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Solution

The fourth proportional to 1,483.12, 2,223.93 and 495.58 is: 743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.12 : 2,223.93 = 495.58 : x
  2. Step 2: Convert to fraction form
    1,483.12/2,223.93 = 495.58/x
  3. Step 3: Cross multiply
    1,483.12x = 2,223.93 × 495.58
  4. Step 4: Simplify right side
    1,483.12x = 1,102,135.23
  5. Step 5: Solve for x
    x = 1,102,135.23/1,483.12
  6. Step 6: Final answer
    x = 743.12

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1.5x scale

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.