Home / 2,787.42-4,177.49-2,088.59

Finding the Fourth Proportional to 2,787.42, 4,177.49 and 2,088.59

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Solution

The fourth proportional to 2,787.42, 4,177.49 and 2,088.59 is: 3,130.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.42 : 4,177.49 = 2,088.59 : x
  2. Step 2: Convert to fraction form
    2,787.42/4,177.49 = 2,088.59/x
  3. Step 3: Cross multiply
    2,787.42x = 4,177.49 × 2,088.59
  4. Step 4: Simplify right side
    2,787.42x = 8,725,063.84
  5. Step 5: Solve for x
    x = 8,725,063.84/2,787.42
  6. Step 6: Final answer
    x = 3,130.16

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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.