Home / 1,077.32-1,486.67-605.21

Finding the Fourth Proportional to 1,077.32, 1,486.67 and 605.21

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Solution

The fourth proportional to 1,077.32, 1,486.67 and 605.21 is: 835.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077.32 : 1,486.67 = 605.21 : x
  2. Step 2: Convert to fraction form
    1,077.32/1,486.67 = 605.21/x
  3. Step 3: Cross multiply
    1,077.32x = 1,486.67 × 605.21
  4. Step 4: Simplify right side
    1,077.32x = 899,740.50
  5. Step 5: Solve for x
    x = 899,740.50/1,077.32
  6. Step 6: Final answer
    x = 835.17

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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.