Home / 7,085.60-10,627.58-1,891.88

Finding the Fourth Proportional to 7,085.60, 10,627.58 and 1,891.88

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Solution

The fourth proportional to 7,085.60, 10,627.58 and 1,891.88 is: 2,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.60 : 10,627.58 = 1,891.88 : x
  2. Step 2: Convert to fraction form
    7,085.60/10,627.58 = 1,891.88/x
  3. Step 3: Cross multiply
    7,085.60x = 10,627.58 × 1,891.88
  4. Step 4: Simplify right side
    7,085.60x = 20,106,052.91
  5. Step 5: Solve for x
    x = 20,106,052.91/7,085.60
  6. Step 6: Final answer
    x = 2,837.60

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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.