Home / 4,927.02-7,391.43-1,639.80

Finding the Fourth Proportional to 4,927.02, 7,391.43 and 1,639.80

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Solution

The fourth proportional to 4,927.02, 7,391.43 and 1,639.80 is: 2,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.02 : 7,391.43 = 1,639.80 : x
  2. Step 2: Convert to fraction form
    4,927.02/7,391.43 = 1,639.80/x
  3. Step 3: Cross multiply
    4,927.02x = 7,391.43 × 1,639.80
  4. Step 4: Simplify right side
    4,927.02x = 12,120,466.91
  5. Step 5: Solve for x
    x = 12,120,466.91/4,927.02
  6. Step 6: Final answer
    x = 2,460.00

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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.