Home / 5,455.72-8,184.60-2,989.18

Finding the Fourth Proportional to 5,455.72, 8,184.60 and 2,989.18

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Solution

The fourth proportional to 5,455.72, 8,184.60 and 2,989.18 is: 4,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.72 : 8,184.60 = 2,989.18 : x
  2. Step 2: Convert to fraction form
    5,455.72/8,184.60 = 2,989.18/x
  3. Step 3: Cross multiply
    5,455.72x = 8,184.60 × 2,989.18
  4. Step 4: Simplify right side
    5,455.72x = 24,465,242.63
  5. Step 5: Solve for x
    x = 24,465,242.63/5,455.72
  6. Step 6: Final answer
    x = 4,484.33

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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.