Home / 7,085.90-10,628.86-3,387.26

Finding the Fourth Proportional to 7,085.90, 10,628.86 and 3,387.26

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Solution

The fourth proportional to 7,085.90, 10,628.86 and 3,387.26 is: 5,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.90 : 10,628.86 = 3,387.26 : x
  2. Step 2: Convert to fraction form
    7,085.90/10,628.86 = 3,387.26/x
  3. Step 3: Cross multiply
    7,085.90x = 10,628.86 × 3,387.26
  4. Step 4: Simplify right side
    7,085.90x = 36,002,712.32
  5. Step 5: Solve for x
    x = 36,002,712.32/7,085.90
  6. Step 6: Final answer
    x = 5,080.89

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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.