Home / 5,086.85-7,019.87-2,848.77

Finding the Fourth Proportional to 5,086.85, 7,019.87 and 2,848.77

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Solution

The fourth proportional to 5,086.85, 7,019.87 and 2,848.77 is: 3,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.85 : 7,019.87 = 2,848.77 : x
  2. Step 2: Convert to fraction form
    5,086.85/7,019.87 = 2,848.77/x
  3. Step 3: Cross multiply
    5,086.85x = 7,019.87 × 2,848.77
  4. Step 4: Simplify right side
    5,086.85x = 19,997,959.96
  5. Step 5: Solve for x
    x = 19,997,959.96/5,086.85
  6. Step 6: Final answer
    x = 3,931.31

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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.