Home / 3,511.80-5,267.70-3,159.45

Finding the Fourth Proportional to 3,511.80, 5,267.70 and 3,159.45

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Solution

The fourth proportional to 3,511.80, 5,267.70 and 3,159.45 is: 4,739.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.80 : 5,267.70 = 3,159.45 : x
  2. Step 2: Convert to fraction form
    3,511.80/5,267.70 = 3,159.45/x
  3. Step 3: Cross multiply
    3,511.80x = 5,267.70 × 3,159.45
  4. Step 4: Simplify right side
    3,511.80x = 16,643,034.77
  5. Step 5: Solve for x
    x = 16,643,034.77/3,511.80
  6. Step 6: Final answer
    x = 4,739.18

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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.