Home / 5,005.80-6,913.58-3,885.01

Finding the Fourth Proportional to 5,005.80, 6,913.58 and 3,885.01

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Solution

The fourth proportional to 5,005.80, 6,913.58 and 3,885.01 is: 5,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.80 : 6,913.58 = 3,885.01 : x
  2. Step 2: Convert to fraction form
    5,005.80/6,913.58 = 3,885.01/x
  3. Step 3: Cross multiply
    5,005.80x = 6,913.58 × 3,885.01
  4. Step 4: Simplify right side
    5,005.80x = 26,859,327.44
  5. Step 5: Solve for x
    x = 26,859,327.44/5,005.80
  6. Step 6: Final answer
    x = 5,365.64

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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.