Home / 7,105.62-9,804.95-4,080.58

Finding the Fourth Proportional to 7,105.62, 9,804.95 and 4,080.58

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Solution

The fourth proportional to 7,105.62, 9,804.95 and 4,080.58 is: 5,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.62 : 9,804.95 = 4,080.58 : x
  2. Step 2: Convert to fraction form
    7,105.62/9,804.95 = 4,080.58/x
  3. Step 3: Cross multiply
    7,105.62x = 9,804.95 × 4,080.58
  4. Step 4: Simplify right side
    7,105.62x = 40,009,853.26
  5. Step 5: Solve for x
    x = 40,009,853.26/7,105.62
  6. Step 6: Final answer
    x = 5,630.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.