Home / 5,387.06-8,081.40-1,923.50

Finding the Fourth Proportional to 5,387.06, 8,081.40 and 1,923.50

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Solution

The fourth proportional to 5,387.06, 8,081.40 and 1,923.50 is: 2,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.06 : 8,081.40 = 1,923.50 : x
  2. Step 2: Convert to fraction form
    5,387.06/8,081.40 = 1,923.50/x
  3. Step 3: Cross multiply
    5,387.06x = 8,081.40 × 1,923.50
  4. Step 4: Simplify right side
    5,387.06x = 15,544,572.90
  5. Step 5: Solve for x
    x = 15,544,572.90/5,387.06
  6. Step 6: Final answer
    x = 2,885.54

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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.