Home / 3,943.98-5,915.93-1,478.75

Finding the Fourth Proportional to 3,943.98, 5,915.93 and 1,478.75

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Solution

The fourth proportional to 3,943.98, 5,915.93 and 1,478.75 is: 2,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.98 : 5,915.93 = 1,478.75 : x
  2. Step 2: Convert to fraction form
    3,943.98/5,915.93 = 1,478.75/x
  3. Step 3: Cross multiply
    3,943.98x = 5,915.93 × 1,478.75
  4. Step 4: Simplify right side
    3,943.98x = 8,748,144.51
  5. Step 5: Solve for x
    x = 8,748,144.51/3,943.98
  6. Step 6: Final answer
    x = 2,218.10

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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.