Home / 5,276.57-7,911.94-2,158.77

Finding the Fourth Proportional to 5,276.57, 7,911.94 and 2,158.77

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Solution

The fourth proportional to 5,276.57, 7,911.94 and 2,158.77 is: 3,236.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.57 : 7,911.94 = 2,158.77 : x
  2. Step 2: Convert to fraction form
    5,276.57/7,911.94 = 2,158.77/x
  3. Step 3: Cross multiply
    5,276.57x = 7,911.94 × 2,158.77
  4. Step 4: Simplify right side
    5,276.57x = 17,080,036.46
  5. Step 5: Solve for x
    x = 17,080,036.46/5,276.57
  6. Step 6: Final answer
    x = 3,236.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.