Home / 4,279.54-6,415.20-1,355.84

Finding the Fourth Proportional to 4,279.54, 6,415.20 and 1,355.84

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Solution

The fourth proportional to 4,279.54, 6,415.20 and 1,355.84 is: 2,032.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.54 : 6,415.20 = 1,355.84 : x
  2. Step 2: Convert to fraction form
    4,279.54/6,415.20 = 1,355.84/x
  3. Step 3: Cross multiply
    4,279.54x = 6,415.20 × 1,355.84
  4. Step 4: Simplify right side
    4,279.54x = 8,697,984.77
  5. Step 5: Solve for x
    x = 8,697,984.77/4,279.54
  6. Step 6: Final answer
    x = 2,032.46

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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.