Home / 5,311.04-8,005.60-4,867.28

Finding the Fourth Proportional to 5,311.04, 8,005.60 and 4,867.28

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Solution

The fourth proportional to 5,311.04, 8,005.60 and 4,867.28 is: 7,336.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.04 : 8,005.60 = 4,867.28 : x
  2. Step 2: Convert to fraction form
    5,311.04/8,005.60 = 4,867.28/x
  3. Step 3: Cross multiply
    5,311.04x = 8,005.60 × 4,867.28
  4. Step 4: Simplify right side
    5,311.04x = 38,965,496.77
  5. Step 5: Solve for x
    x = 38,965,496.77/5,311.04
  6. Step 6: Final answer
    x = 7,336.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.