Home / 6,977.60-9,628.80-4,456.16

Finding the Fourth Proportional to 6,977.60, 9,628.80 and 4,456.16

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Solution

The fourth proportional to 6,977.60, 9,628.80 and 4,456.16 is: 6,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,977.60 : 9,628.80 = 4,456.16 : x
  2. Step 2: Convert to fraction form
    6,977.60/9,628.80 = 4,456.16/x
  3. Step 3: Cross multiply
    6,977.60x = 9,628.80 × 4,456.16
  4. Step 4: Simplify right side
    6,977.60x = 42,907,473.41
  5. Step 5: Solve for x
    x = 42,907,473.41/6,977.60
  6. Step 6: Final answer
    x = 6,149.32

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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.