Home / 3,875.84-5,811.86-1,376.18

Finding the Fourth Proportional to 3,875.84, 5,811.86 and 1,376.18

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Solution

The fourth proportional to 3,875.84, 5,811.86 and 1,376.18 is: 2,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.84 : 5,811.86 = 1,376.18 : x
  2. Step 2: Convert to fraction form
    3,875.84/5,811.86 = 1,376.18/x
  3. Step 3: Cross multiply
    3,875.84x = 5,811.86 × 1,376.18
  4. Step 4: Simplify right side
    3,875.84x = 7,998,165.49
  5. Step 5: Solve for x
    x = 7,998,165.49/3,875.84
  6. Step 6: Final answer
    x = 2,063.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.