Home / 5,281.53-7,923.51-2,815.05

Finding the Fourth Proportional to 5,281.53, 7,923.51 and 2,815.05

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Solution

The fourth proportional to 5,281.53, 7,923.51 and 2,815.05 is: 4,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.53 : 7,923.51 = 2,815.05 : x
  2. Step 2: Convert to fraction form
    5,281.53/7,923.51 = 2,815.05/x
  3. Step 3: Cross multiply
    5,281.53x = 7,923.51 × 2,815.05
  4. Step 4: Simplify right side
    5,281.53x = 22,305,076.83
  5. Step 5: Solve for x
    x = 22,305,076.83/5,281.53
  6. Step 6: Final answer
    x = 4,223.22

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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.