Home / 4,237.60-6,356.34-1,638.70

Finding the Fourth Proportional to 4,237.60, 6,356.34 and 1,638.70

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Solution

The fourth proportional to 4,237.60, 6,356.34 and 1,638.70 is: 2,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,237.60 : 6,356.34 = 1,638.70 : x
  2. Step 2: Convert to fraction form
    4,237.60/6,356.34 = 1,638.70/x
  3. Step 3: Cross multiply
    4,237.60x = 6,356.34 × 1,638.70
  4. Step 4: Simplify right side
    4,237.60x = 10,416,134.36
  5. Step 5: Solve for x
    x = 10,416,134.36/4,237.60
  6. Step 6: Final answer
    x = 2,458.03

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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.