Home / 5,407.75-8,112.44-1,898.70

Finding the Fourth Proportional to 5,407.75, 8,112.44 and 1,898.70

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Solution

The fourth proportional to 5,407.75, 8,112.44 and 1,898.70 is: 2,848.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.75 : 8,112.44 = 1,898.70 : x
  2. Step 2: Convert to fraction form
    5,407.75/8,112.44 = 1,898.70/x
  3. Step 3: Cross multiply
    5,407.75x = 8,112.44 × 1,898.70
  4. Step 4: Simplify right side
    5,407.75x = 15,403,089.83
  5. Step 5: Solve for x
    x = 15,403,089.83/5,407.75
  6. Step 6: Final answer
    x = 2,848.34

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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.