Home / 6,599.78-9,107.90-3,615.80

Finding the Fourth Proportional to 6,599.78, 9,107.90 and 3,615.80

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Solution

The fourth proportional to 6,599.78, 9,107.90 and 3,615.80 is: 4,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.78 : 9,107.90 = 3,615.80 : x
  2. Step 2: Convert to fraction form
    6,599.78/9,107.90 = 3,615.80/x
  3. Step 3: Cross multiply
    6,599.78x = 9,107.90 × 3,615.80
  4. Step 4: Simplify right side
    6,599.78x = 32,932,315.10
  5. Step 5: Solve for x
    x = 32,932,315.10/6,599.78
  6. Step 6: Final answer
    x = 4,989.91

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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.