Home / 2,701.20-4,051.80-969.60

Finding the Fourth Proportional to 2,701.20, 4,051.80 and 969.60

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Solution

The fourth proportional to 2,701.20, 4,051.80 and 969.60 is: 1,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,701.20 : 4,051.80 = 969.60 : x
  2. Step 2: Convert to fraction form
    2,701.20/4,051.80 = 969.60/x
  3. Step 3: Cross multiply
    2,701.20x = 4,051.80 × 969.60
  4. Step 4: Simplify right side
    2,701.20x = 3,928,625.28
  5. Step 5: Solve for x
    x = 3,928,625.28/2,701.20
  6. Step 6: Final answer
    x = 1,454.40

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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.