Home / 1,054.46-1,581.29-437.85

Finding the Fourth Proportional to 1,054.46, 1,581.29 and 437.85

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Solution

The fourth proportional to 1,054.46, 1,581.29 and 437.85 is: 656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.46 : 1,581.29 = 437.85 : x
  2. Step 2: Convert to fraction form
    1,054.46/1,581.29 = 437.85/x
  3. Step 3: Cross multiply
    1,054.46x = 1,581.29 × 437.85
  4. Step 4: Simplify right side
    1,054.46x = 692,365.64
  5. Step 5: Solve for x
    x = 692,365.64/1,054.46
  6. Step 6: Final answer
    x = 656.61

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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.