Home / 3,487.41-4,812.63-1,915.50

Finding the Fourth Proportional to 3,487.41, 4,812.63 and 1,915.50

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Solution

The fourth proportional to 3,487.41, 4,812.63 and 1,915.50 is: 2,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.41 : 4,812.63 = 1,915.50 : x
  2. Step 2: Convert to fraction form
    3,487.41/4,812.63 = 1,915.50/x
  3. Step 3: Cross multiply
    3,487.41x = 4,812.63 × 1,915.50
  4. Step 4: Simplify right side
    3,487.41x = 9,218,592.77
  5. Step 5: Solve for x
    x = 9,218,592.77/3,487.41
  6. Step 6: Final answer
    x = 2,643.39

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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.