Home / 4,885.74-6,740.55-3,118.14

Finding the Fourth Proportional to 4,885.74, 6,740.55 and 3,118.14

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Solution

The fourth proportional to 4,885.74, 6,740.55 and 3,118.14 is: 4,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.74 : 6,740.55 = 3,118.14 : x
  2. Step 2: Convert to fraction form
    4,885.74/6,740.55 = 3,118.14/x
  3. Step 3: Cross multiply
    4,885.74x = 6,740.55 × 3,118.14
  4. Step 4: Simplify right side
    4,885.74x = 21,017,978.58
  5. Step 5: Solve for x
    x = 21,017,978.58/4,885.74
  6. Step 6: Final answer
    x = 4,301.90

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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.