Home / 2,787.02-4,180.59-1,326.32

Finding the Fourth Proportional to 2,787.02, 4,180.59 and 1,326.32

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Solution

The fourth proportional to 2,787.02, 4,180.59 and 1,326.32 is: 1,989.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.02 : 4,180.59 = 1,326.32 : x
  2. Step 2: Convert to fraction form
    2,787.02/4,180.59 = 1,326.32/x
  3. Step 3: Cross multiply
    2,787.02x = 4,180.59 × 1,326.32
  4. Step 4: Simplify right side
    2,787.02x = 5,544,779.23
  5. Step 5: Solve for x
    x = 5,544,779.23/2,787.02
  6. Step 6: Final answer
    x = 1,989.50

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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.