Home / 3,609.76-5,415.56-1,012.70

Finding the Fourth Proportional to 3,609.76, 5,415.56 and 1,012.70

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Solution

The fourth proportional to 3,609.76, 5,415.56 and 1,012.70 is: 1,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.76 : 5,415.56 = 1,012.70 : x
  2. Step 2: Convert to fraction form
    3,609.76/5,415.56 = 1,012.70/x
  3. Step 3: Cross multiply
    3,609.76x = 5,415.56 × 1,012.70
  4. Step 4: Simplify right side
    3,609.76x = 5,484,337.61
  5. Step 5: Solve for x
    x = 5,484,337.61/3,609.76
  6. Step 6: Final answer
    x = 1,519.31

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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.