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Finding the Fourth Proportional to 1,502.82, 2,254.23 and 407.34

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Solution

The fourth proportional to 1,502.82, 2,254.23 and 407.34 is: 611.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.82 : 2,254.23 = 407.34 : x
  2. Step 2: Convert to fraction form
    1,502.82/2,254.23 = 407.34/x
  3. Step 3: Cross multiply
    1,502.82x = 2,254.23 × 407.34
  4. Step 4: Simplify right side
    1,502.82x = 918,238.05
  5. Step 5: Solve for x
    x = 918,238.05/1,502.82
  6. Step 6: Final answer
    x = 611.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.