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Finding the Fourth Proportional to 1,458.32, 2,186.84 and 483.92

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Solution

The fourth proportional to 1,458.32, 2,186.84 and 483.92 is: 725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.32 : 2,186.84 = 483.92 : x
  2. Step 2: Convert to fraction form
    1,458.32/2,186.84 = 483.92/x
  3. Step 3: Cross multiply
    1,458.32x = 2,186.84 × 483.92
  4. Step 4: Simplify right side
    1,458.32x = 1,058,255.61
  5. Step 5: Solve for x
    x = 1,058,255.61/1,458.32
  6. Step 6: Final answer
    x = 725.67

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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.