Home / 3,416.84-5,129.31-2,875.76

Finding the Fourth Proportional to 3,416.84, 5,129.31 and 2,875.76

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Solution

The fourth proportional to 3,416.84, 5,129.31 and 2,875.76 is: 4,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.84 : 5,129.31 = 2,875.76 : x
  2. Step 2: Convert to fraction form
    3,416.84/5,129.31 = 2,875.76/x
  3. Step 3: Cross multiply
    3,416.84x = 5,129.31 × 2,875.76
  4. Step 4: Simplify right side
    3,416.84x = 14,750,664.53
  5. Step 5: Solve for x
    x = 14,750,664.53/3,416.84
  6. Step 6: Final answer
    x = 4,317.05

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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.