Home / 6,890.20-9,504.64-4,496.78

Finding the Fourth Proportional to 6,890.20, 9,504.64 and 4,496.78

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Solution

The fourth proportional to 6,890.20, 9,504.64 and 4,496.78 is: 6,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.20 : 9,504.64 = 4,496.78 : x
  2. Step 2: Convert to fraction form
    6,890.20/9,504.64 = 4,496.78/x
  3. Step 3: Cross multiply
    6,890.20x = 9,504.64 × 4,496.78
  4. Step 4: Simplify right side
    6,890.20x = 42,740,275.06
  5. Step 5: Solve for x
    x = 42,740,275.06/6,890.20
  6. Step 6: Final answer
    x = 6,203.05

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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.