Home / 5,276.31-7,911.54-2,158.50

Finding the Fourth Proportional to 5,276.31, 7,911.54 and 2,158.50

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Solution

The fourth proportional to 5,276.31, 7,911.54 and 2,158.50 is: 3,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.31 : 7,911.54 = 2,158.50 : x
  2. Step 2: Convert to fraction form
    5,276.31/7,911.54 = 2,158.50/x
  3. Step 3: Cross multiply
    5,276.31x = 7,911.54 × 2,158.50
  4. Step 4: Simplify right side
    5,276.31x = 17,077,048.30
  5. Step 5: Solve for x
    x = 17,077,048.30/5,276.31
  6. Step 6: Final answer
    x = 3,236.55

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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.