Home / 5,455.52-8,176.06-1,989.44

Finding the Fourth Proportional to 5,455.52, 8,176.06 and 1,989.44

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Solution

The fourth proportional to 5,455.52, 8,176.06 and 1,989.44 is: 2,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.52 : 8,176.06 = 1,989.44 : x
  2. Step 2: Convert to fraction form
    5,455.52/8,176.06 = 1,989.44/x
  3. Step 3: Cross multiply
    5,455.52x = 8,176.06 × 1,989.44
  4. Step 4: Simplify right side
    5,455.52x = 16,265,780.81
  5. Step 5: Solve for x
    x = 16,265,780.81/5,455.52
  6. Step 6: Final answer
    x = 2,981.53

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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.