Home / 2,989.19-4,125.56-2,152.67

Finding the Fourth Proportional to 2,989.19, 4,125.56 and 2,152.67

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Solution

The fourth proportional to 2,989.19, 4,125.56 and 2,152.67 is: 2,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.19 : 4,125.56 = 2,152.67 : x
  2. Step 2: Convert to fraction form
    2,989.19/4,125.56 = 2,152.67/x
  3. Step 3: Cross multiply
    2,989.19x = 4,125.56 × 2,152.67
  4. Step 4: Simplify right side
    2,989.19x = 8,880,937.85
  5. Step 5: Solve for x
    x = 8,880,937.85/2,989.19
  6. Step 6: Final answer
    x = 2,971.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.