Home / 5,152.20-7,725.60-1,864.80

Finding the Fourth Proportional to 5,152.20, 7,725.60 and 1,864.80

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Solution

The fourth proportional to 5,152.20, 7,725.60 and 1,864.80 is: 2,796.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.20 : 7,725.60 = 1,864.80 : x
  2. Step 2: Convert to fraction form
    5,152.20/7,725.60 = 1,864.80/x
  3. Step 3: Cross multiply
    5,152.20x = 7,725.60 × 1,864.80
  4. Step 4: Simplify right side
    5,152.20x = 14,406,698.88
  5. Step 5: Solve for x
    x = 14,406,698.88/5,152.20
  6. Step 6: Final answer
    x = 2,796.22

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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.