Home / 1,457.03-2,185.61-417.18

Finding the Fourth Proportional to 1,457.03, 2,185.61 and 417.18

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Solution

The fourth proportional to 1,457.03, 2,185.61 and 417.18 is: 625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.03 : 2,185.61 = 417.18 : x
  2. Step 2: Convert to fraction form
    1,457.03/2,185.61 = 417.18/x
  3. Step 3: Cross multiply
    1,457.03x = 2,185.61 × 417.18
  4. Step 4: Simplify right side
    1,457.03x = 911,790.69
  5. Step 5: Solve for x
    x = 911,790.69/1,457.03
  6. Step 6: Final answer
    x = 625.79

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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.