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Finding the Fourth Proportional to 3,623.40, 5,000.40 and 2,051.20

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Solution

The fourth proportional to 3,623.40, 5,000.40 and 2,051.20 is: 2,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.40 : 5,000.40 = 2,051.20 : x
  2. Step 2: Convert to fraction form
    3,623.40/5,000.40 = 2,051.20/x
  3. Step 3: Cross multiply
    3,623.40x = 5,000.40 × 2,051.20
  4. Step 4: Simplify right side
    3,623.40x = 10,256,820.48
  5. Step 5: Solve for x
    x = 10,256,820.48/3,623.40
  6. Step 6: Final answer
    x = 2,830.72

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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.