Home / 1,457.18-2,185.73-469.99

Finding the Fourth Proportional to 1,457.18, 2,185.73 and 469.99

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Solution

The fourth proportional to 1,457.18, 2,185.73 and 469.99 is: 704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.18 : 2,185.73 = 469.99 : x
  2. Step 2: Convert to fraction form
    1,457.18/2,185.73 = 469.99/x
  3. Step 3: Cross multiply
    1,457.18x = 2,185.73 × 469.99
  4. Step 4: Simplify right side
    1,457.18x = 1,027,273.39
  5. Step 5: Solve for x
    x = 1,027,273.39/1,457.18
  6. Step 6: Final answer
    x = 704.97

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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.