Home / 7,184.10-10,776.39-1,989.54

Finding the Fourth Proportional to 7,184.10, 10,776.39 and 1,989.54

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Solution

The fourth proportional to 7,184.10, 10,776.39 and 1,989.54 is: 2,984.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.10 : 10,776.39 = 1,989.54 : x
  2. Step 2: Convert to fraction form
    7,184.10/10,776.39 = 1,989.54/x
  3. Step 3: Cross multiply
    7,184.10x = 10,776.39 × 1,989.54
  4. Step 4: Simplify right side
    7,184.10x = 21,440,058.96
  5. Step 5: Solve for x
    x = 21,440,058.96/7,184.10
  6. Step 6: Final answer
    x = 2,984.38

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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.