Home / 1,460.17-2,190.59-486.31

Finding the Fourth Proportional to 1,460.17, 2,190.59 and 486.31

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Solution

The fourth proportional to 1,460.17, 2,190.59 and 486.31 is: 729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.17 : 2,190.59 = 486.31 : x
  2. Step 2: Convert to fraction form
    1,460.17/2,190.59 = 486.31/x
  3. Step 3: Cross multiply
    1,460.17x = 2,190.59 × 486.31
  4. Step 4: Simplify right side
    1,460.17x = 1,065,305.82
  5. Step 5: Solve for x
    x = 1,065,305.82/1,460.17
  6. Step 6: Final answer
    x = 729.58

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