Home / 3,457.09-5,186.45-1,509.85

Finding the Fourth Proportional to 3,457.09, 5,186.45 and 1,509.85

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Solution

The fourth proportional to 3,457.09, 5,186.45 and 1,509.85 is: 2,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.09 : 5,186.45 = 1,509.85 : x
  2. Step 2: Convert to fraction form
    3,457.09/5,186.45 = 1,509.85/x
  3. Step 3: Cross multiply
    3,457.09x = 5,186.45 × 1,509.85
  4. Step 4: Simplify right side
    3,457.09x = 7,830,761.53
  5. Step 5: Solve for x
    x = 7,830,761.53/3,457.09
  6. Step 6: Final answer
    x = 2,265.13

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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.