Home / 2,928.48-4,392.02-1,078.60

Finding the Fourth Proportional to 2,928.48, 4,392.02 and 1,078.60

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Solution

The fourth proportional to 2,928.48, 4,392.02 and 1,078.60 is: 1,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.48 : 4,392.02 = 1,078.60 : x
  2. Step 2: Convert to fraction form
    2,928.48/4,392.02 = 1,078.60/x
  3. Step 3: Cross multiply
    2,928.48x = 4,392.02 × 1,078.60
  4. Step 4: Simplify right side
    2,928.48x = 4,737,232.77
  5. Step 5: Solve for x
    x = 4,737,232.77/2,928.48
  6. Step 6: Final answer
    x = 1,617.64

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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.