Home / 6,578.45-9,078.28-3,925.80

Finding the Fourth Proportional to 6,578.45, 9,078.28 and 3,925.80

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Solution

The fourth proportional to 6,578.45, 9,078.28 and 3,925.80 is: 5,417.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,578.45 : 9,078.28 = 3,925.80 : x
  2. Step 2: Convert to fraction form
    6,578.45/9,078.28 = 3,925.80/x
  3. Step 3: Cross multiply
    6,578.45x = 9,078.28 × 3,925.80
  4. Step 4: Simplify right side
    6,578.45x = 35,639,501.81
  5. Step 5: Solve for x
    x = 35,639,501.81/6,578.45
  6. Step 6: Final answer
    x = 5,417.61

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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.