Home / 5,076.48-7,005.69-2,807.89

Finding the Fourth Proportional to 5,076.48, 7,005.69 and 2,807.89

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Solution

The fourth proportional to 5,076.48, 7,005.69 and 2,807.89 is: 3,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.48 : 7,005.69 = 2,807.89 : x
  2. Step 2: Convert to fraction form
    5,076.48/7,005.69 = 2,807.89/x
  3. Step 3: Cross multiply
    5,076.48x = 7,005.69 × 2,807.89
  4. Step 4: Simplify right side
    5,076.48x = 19,671,220.93
  5. Step 5: Solve for x
    x = 19,671,220.93/5,076.48
  6. Step 6: Final answer
    x = 3,874.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.