Home / 6,415.03-8,857.76-4,920.58

Finding the Fourth Proportional to 6,415.03, 8,857.76 and 4,920.58

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Solution

The fourth proportional to 6,415.03, 8,857.76 and 4,920.58 is: 6,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.03 : 8,857.76 = 4,920.58 : x
  2. Step 2: Convert to fraction form
    6,415.03/8,857.76 = 4,920.58/x
  3. Step 3: Cross multiply
    6,415.03x = 8,857.76 × 4,920.58
  4. Step 4: Simplify right side
    6,415.03x = 43,585,269.95
  5. Step 5: Solve for x
    x = 43,585,269.95/6,415.03
  6. Step 6: Final answer
    x = 6,794.25

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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.