Home / 5,160.48-7,736.16-1,872.80

Finding the Fourth Proportional to 5,160.48, 7,736.16 and 1,872.80

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Solution

The fourth proportional to 5,160.48, 7,736.16 and 1,872.80 is: 2,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.48 : 7,736.16 = 1,872.80 : x
  2. Step 2: Convert to fraction form
    5,160.48/7,736.16 = 1,872.80/x
  3. Step 3: Cross multiply
    5,160.48x = 7,736.16 × 1,872.80
  4. Step 4: Simplify right side
    5,160.48x = 14,488,280.45
  5. Step 5: Solve for x
    x = 14,488,280.45/5,160.48
  6. Step 6: Final answer
    x = 2,807.55

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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.