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Finding the Fourth Proportional to 2,908.04, 4,012.20 and 1,649.03

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Solution

The fourth proportional to 2,908.04, 4,012.20 and 1,649.03 is: 2,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.04 : 4,012.20 = 1,649.03 : x
  2. Step 2: Convert to fraction form
    2,908.04/4,012.20 = 1,649.03/x
  3. Step 3: Cross multiply
    2,908.04x = 4,012.20 × 1,649.03
  4. Step 4: Simplify right side
    2,908.04x = 6,616,218.11
  5. Step 5: Solve for x
    x = 6,616,218.11/2,908.04
  6. Step 6: Final answer
    x = 2,275.15

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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.