Home / 2,899.14-4,001.01-1,640.20

Finding the Fourth Proportional to 2,899.14, 4,001.01 and 1,640.20

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Solution

The fourth proportional to 2,899.14, 4,001.01 and 1,640.20 is: 2,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.14 : 4,001.01 = 1,640.20 : x
  2. Step 2: Convert to fraction form
    2,899.14/4,001.01 = 1,640.20/x
  3. Step 3: Cross multiply
    2,899.14x = 4,001.01 × 1,640.20
  4. Step 4: Simplify right side
    2,899.14x = 6,562,449.56
  5. Step 5: Solve for x
    x = 6,562,449.56/2,899.14
  6. Step 6: Final answer
    x = 2,263.58

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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.