Home / 2,915.85-4,368.90-2,048.61

Finding the Fourth Proportional to 2,915.85, 4,368.90 and 2,048.61

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Solution

The fourth proportional to 2,915.85, 4,368.90 and 2,048.61 is: 3,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.85 : 4,368.90 = 2,048.61 : x
  2. Step 2: Convert to fraction form
    2,915.85/4,368.90 = 2,048.61/x
  3. Step 3: Cross multiply
    2,915.85x = 4,368.90 × 2,048.61
  4. Step 4: Simplify right side
    2,915.85x = 8,950,172.23
  5. Step 5: Solve for x
    x = 8,950,172.23/2,915.85
  6. Step 6: Final answer
    x = 3,069.49

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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.