Home / 4,787.65-7,177.60-2,153.23

Finding the Fourth Proportional to 4,787.65, 7,177.60 and 2,153.23

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Solution

The fourth proportional to 4,787.65, 7,177.60 and 2,153.23 is: 3,228.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.65 : 7,177.60 = 2,153.23 : x
  2. Step 2: Convert to fraction form
    4,787.65/7,177.60 = 2,153.23/x
  3. Step 3: Cross multiply
    4,787.65x = 7,177.60 × 2,153.23
  4. Step 4: Simplify right side
    4,787.65x = 15,454,987.76
  5. Step 5: Solve for x
    x = 15,454,987.76/4,787.65
  6. Step 6: Final answer
    x = 3,228.09

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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.