Home / 3,885.10-5,826.74-1,111.25

Finding the Fourth Proportional to 3,885.10, 5,826.74 and 1,111.25

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Solution

The fourth proportional to 3,885.10, 5,826.74 and 1,111.25 is: 1,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.10 : 5,826.74 = 1,111.25 : x
  2. Step 2: Convert to fraction form
    3,885.10/5,826.74 = 1,111.25/x
  3. Step 3: Cross multiply
    3,885.10x = 5,826.74 × 1,111.25
  4. Step 4: Simplify right side
    3,885.10x = 6,474,973.84
  5. Step 5: Solve for x
    x = 6,474,973.84/3,885.10
  6. Step 6: Final answer
    x = 1,666.62

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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.