Home / 1,612.03-2,223.79-1,021.63

Finding the Fourth Proportional to 1,612.03, 2,223.79 and 1,021.63

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Solution

The fourth proportional to 1,612.03, 2,223.79 and 1,021.63 is: 1,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.03 : 2,223.79 = 1,021.63 : x
  2. Step 2: Convert to fraction form
    1,612.03/2,223.79 = 1,021.63/x
  3. Step 3: Cross multiply
    1,612.03x = 2,223.79 × 1,021.63
  4. Step 4: Simplify right side
    1,612.03x = 2,271,890.58
  5. Step 5: Solve for x
    x = 2,271,890.58/1,612.03
  6. Step 6: Final answer
    x = 1,409.34

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Half scale
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Double scale
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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.