Home / 5,370.28-8,054.48-1,421.56

Finding the Fourth Proportional to 5,370.28, 8,054.48 and 1,421.56

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Solution

The fourth proportional to 5,370.28, 8,054.48 and 1,421.56 is: 2,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.28 : 8,054.48 = 1,421.56 : x
  2. Step 2: Convert to fraction form
    5,370.28/8,054.48 = 1,421.56/x
  3. Step 3: Cross multiply
    5,370.28x = 8,054.48 × 1,421.56
  4. Step 4: Simplify right side
    5,370.28x = 11,449,926.59
  5. Step 5: Solve for x
    x = 11,449,926.59/5,370.28
  6. Step 6: Final answer
    x = 2,132.09

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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.