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Finding the Fourth Proportional to 1,649.56, 2,275.34 and 1,152.01

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Solution

The fourth proportional to 1,649.56, 2,275.34 and 1,152.01 is: 1,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.56 : 2,275.34 = 1,152.01 : x
  2. Step 2: Convert to fraction form
    1,649.56/2,275.34 = 1,152.01/x
  3. Step 3: Cross multiply
    1,649.56x = 2,275.34 × 1,152.01
  4. Step 4: Simplify right side
    1,649.56x = 2,621,214.43
  5. Step 5: Solve for x
    x = 2,621,214.43/1,649.56
  6. Step 6: Final answer
    x = 1,589.04

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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.