Home / 6,742.85-10,115.08-1,812.58

Finding the Fourth Proportional to 6,742.85, 10,115.08 and 1,812.58

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Solution

The fourth proportional to 6,742.85, 10,115.08 and 1,812.58 is: 2,719.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.85 : 10,115.08 = 1,812.58 : x
  2. Step 2: Convert to fraction form
    6,742.85/10,115.08 = 1,812.58/x
  3. Step 3: Cross multiply
    6,742.85x = 10,115.08 × 1,812.58
  4. Step 4: Simplify right side
    6,742.85x = 18,334,361.89
  5. Step 5: Solve for x
    x = 18,334,361.89/6,742.85
  6. Step 6: Final answer
    x = 2,719.08

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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.