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Finding the Fourth Proportional to 2,899.03, 4,000.60 and 1,640.04

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Solution

The fourth proportional to 2,899.03, 4,000.60 and 1,640.04 is: 2,263.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.03 : 4,000.60 = 1,640.04 : x
  2. Step 2: Convert to fraction form
    2,899.03/4,000.60 = 1,640.04/x
  3. Step 3: Cross multiply
    2,899.03x = 4,000.60 × 1,640.04
  4. Step 4: Simplify right side
    2,899.03x = 6,561,144.02
  5. Step 5: Solve for x
    x = 6,561,144.02/2,899.03
  6. Step 6: Final answer
    x = 2,263.22

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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.