Home / 3,913.40-5,867.06-1,937.67

Finding the Fourth Proportional to 3,913.40, 5,867.06 and 1,937.67

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Solution

The fourth proportional to 3,913.40, 5,867.06 and 1,937.67 is: 2,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.40 : 5,867.06 = 1,937.67 : x
  2. Step 2: Convert to fraction form
    3,913.40/5,867.06 = 1,937.67/x
  3. Step 3: Cross multiply
    3,913.40x = 5,867.06 × 1,937.67
  4. Step 4: Simplify right side
    3,913.40x = 11,368,416.46
  5. Step 5: Solve for x
    x = 11,368,416.46/3,913.40
  6. Step 6: Final answer
    x = 2,905.00

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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.