Home / 4,941.60-7,428.60-3,490.80

Finding the Fourth Proportional to 4,941.60, 7,428.60 and 3,490.80

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Solution

The fourth proportional to 4,941.60, 7,428.60 and 3,490.80 is: 5,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,941.60 : 7,428.60 = 3,490.80 : x
  2. Step 2: Convert to fraction form
    4,941.60/7,428.60 = 3,490.80/x
  3. Step 3: Cross multiply
    4,941.60x = 7,428.60 × 3,490.80
  4. Step 4: Simplify right side
    4,941.60x = 25,931,756.88
  5. Step 5: Solve for x
    x = 25,931,756.88/4,941.60
  6. Step 6: Final answer
    x = 5,247.64

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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.