Home / 2,772.97-4,155.80-1,539.74

Finding the Fourth Proportional to 2,772.97, 4,155.80 and 1,539.74

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Solution

The fourth proportional to 2,772.97, 4,155.80 and 1,539.74 is: 2,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.97 : 4,155.80 = 1,539.74 : x
  2. Step 2: Convert to fraction form
    2,772.97/4,155.80 = 1,539.74/x
  3. Step 3: Cross multiply
    2,772.97x = 4,155.80 × 1,539.74
  4. Step 4: Simplify right side
    2,772.97x = 6,398,851.49
  5. Step 5: Solve for x
    x = 6,398,851.49/2,772.97
  6. Step 6: Final answer
    x = 2,307.58

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1.5x scale

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.