Home / 5,089.95-7,633.65-1,392.21

Finding the Fourth Proportional to 5,089.95, 7,633.65 and 1,392.21

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Solution

The fourth proportional to 5,089.95, 7,633.65 and 1,392.21 is: 2,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.95 : 7,633.65 = 1,392.21 : x
  2. Step 2: Convert to fraction form
    5,089.95/7,633.65 = 1,392.21/x
  3. Step 3: Cross multiply
    5,089.95x = 7,633.65 × 1,392.21
  4. Step 4: Simplify right side
    5,089.95x = 10,627,643.87
  5. Step 5: Solve for x
    x = 10,627,643.87/5,089.95
  6. Step 6: Final answer
    x = 2,087.97

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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.