Home / 2,074.10-3,111.70-903.60

Finding the Fourth Proportional to 2,074.10, 3,111.70 and 903.60

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Solution

The fourth proportional to 2,074.10, 3,111.70 and 903.60 is: 1,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.10 : 3,111.70 = 903.60 : x
  2. Step 2: Convert to fraction form
    2,074.10/3,111.70 = 903.60/x
  3. Step 3: Cross multiply
    2,074.10x = 3,111.70 × 903.60
  4. Step 4: Simplify right side
    2,074.10x = 2,811,732.12
  5. Step 5: Solve for x
    x = 2,811,732.12/2,074.10
  6. Step 6: Final answer
    x = 1,355.64

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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.