Home / 3,477.50-5,215.46-1,011.78

Finding the Fourth Proportional to 3,477.50, 5,215.46 and 1,011.78

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Solution

The fourth proportional to 3,477.50, 5,215.46 and 1,011.78 is: 1,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.50 : 5,215.46 = 1,011.78 : x
  2. Step 2: Convert to fraction form
    3,477.50/5,215.46 = 1,011.78/x
  3. Step 3: Cross multiply
    3,477.50x = 5,215.46 × 1,011.78
  4. Step 4: Simplify right side
    3,477.50x = 5,276,898.12
  5. Step 5: Solve for x
    x = 5,276,898.12/3,477.50
  6. Step 6: Final answer
    x = 1,517.44

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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.