Home / 7,151.56-10,727.37-1,886.20

Finding the Fourth Proportional to 7,151.56, 10,727.37 and 1,886.20

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Solution

The fourth proportional to 7,151.56, 10,727.37 and 1,886.20 is: 2,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.56 : 10,727.37 = 1,886.20 : x
  2. Step 2: Convert to fraction form
    7,151.56/10,727.37 = 1,886.20/x
  3. Step 3: Cross multiply
    7,151.56x = 10,727.37 × 1,886.20
  4. Step 4: Simplify right side
    7,151.56x = 20,233,965.29
  5. Step 5: Solve for x
    x = 20,233,965.29/7,151.56
  6. Step 6: Final answer
    x = 2,829.31

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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.