Home / 4,947.60-7,421.90-1,828.44

Finding the Fourth Proportional to 4,947.60, 7,421.90 and 1,828.44

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Solution

The fourth proportional to 4,947.60, 7,421.90 and 1,828.44 is: 2,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.60 : 7,421.90 = 1,828.44 : x
  2. Step 2: Convert to fraction form
    4,947.60/7,421.90 = 1,828.44/x
  3. Step 3: Cross multiply
    4,947.60x = 7,421.90 × 1,828.44
  4. Step 4: Simplify right side
    4,947.60x = 13,570,498.84
  5. Step 5: Solve for x
    x = 13,570,498.84/4,947.60
  6. Step 6: Final answer
    x = 2,742.84

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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.