Home / 5,142.98-7,089.87-3,371.51

Finding the Fourth Proportional to 5,142.98, 7,089.87 and 3,371.51

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Solution

The fourth proportional to 5,142.98, 7,089.87 and 3,371.51 is: 4,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.98 : 7,089.87 = 3,371.51 : x
  2. Step 2: Convert to fraction form
    5,142.98/7,089.87 = 3,371.51/x
  3. Step 3: Cross multiply
    5,142.98x = 7,089.87 × 3,371.51
  4. Step 4: Simplify right side
    5,142.98x = 23,903,532.15
  5. Step 5: Solve for x
    x = 23,903,532.15/5,142.98
  6. Step 6: Final answer
    x = 4,647.80

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1.5x scale

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.