Home / 4,931.87-7,395.30-1,643.81

Finding the Fourth Proportional to 4,931.87, 7,395.30 and 1,643.81

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Solution

The fourth proportional to 4,931.87, 7,395.30 and 1,643.81 is: 2,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.87 : 7,395.30 = 1,643.81 : x
  2. Step 2: Convert to fraction form
    4,931.87/7,395.30 = 1,643.81/x
  3. Step 3: Cross multiply
    4,931.87x = 7,395.30 × 1,643.81
  4. Step 4: Simplify right side
    4,931.87x = 12,156,431.12
  5. Step 5: Solve for x
    x = 12,156,431.12/4,931.87
  6. Step 6: Final answer
    x = 2,464.88

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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.