Home / 6,848.81-9,451.35-3,705

Finding the Fourth Proportional to 6,848.81, 9,451.35 and 3,705

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Solution

The fourth proportional to 6,848.81, 9,451.35 and 3,705 is: 5,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,848.81 : 9,451.35 = 3,705 : x
  2. Step 2: Convert to fraction form
    6,848.81/9,451.35 = 3,705/x
  3. Step 3: Cross multiply
    6,848.81x = 9,451.35 × 3,705
  4. Step 4: Simplify right side
    6,848.81x = 35,017,251.75
  5. Step 5: Solve for x
    x = 35,017,251.75/6,848.81
  6. Step 6: Final answer
    x = 5,112.90

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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.