Home / 4,311.81-6,466.89-1,390.14

Finding the Fourth Proportional to 4,311.81, 6,466.89 and 1,390.14

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Solution

The fourth proportional to 4,311.81, 6,466.89 and 1,390.14 is: 2,084.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.81 : 6,466.89 = 1,390.14 : x
  2. Step 2: Convert to fraction form
    4,311.81/6,466.89 = 1,390.14/x
  3. Step 3: Cross multiply
    4,311.81x = 6,466.89 × 1,390.14
  4. Step 4: Simplify right side
    4,311.81x = 8,989,882.46
  5. Step 5: Solve for x
    x = 8,989,882.46/4,311.81
  6. Step 6: Final answer
    x = 2,084.94

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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.