Home / 4,930.50-7,395.72-1,420.59

Finding the Fourth Proportional to 4,930.50, 7,395.72 and 1,420.59

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Solution

The fourth proportional to 4,930.50, 7,395.72 and 1,420.59 is: 2,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.50 : 7,395.72 = 1,420.59 : x
  2. Step 2: Convert to fraction form
    4,930.50/7,395.72 = 1,420.59/x
  3. Step 3: Cross multiply
    4,930.50x = 7,395.72 × 1,420.59
  4. Step 4: Simplify right side
    4,930.50x = 10,506,285.87
  5. Step 5: Solve for x
    x = 10,506,285.87/4,930.50
  6. Step 6: Final answer
    x = 2,130.88

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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.