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Finding the Fourth Proportional to 2,027.65, 3,040.46 and 931.08

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Solution

The fourth proportional to 2,027.65, 3,040.46 and 931.08 is: 1,396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.65 : 3,040.46 = 931.08 : x
  2. Step 2: Convert to fraction form
    2,027.65/3,040.46 = 931.08/x
  3. Step 3: Cross multiply
    2,027.65x = 3,040.46 × 931.08
  4. Step 4: Simplify right side
    2,027.65x = 2,830,911.50
  5. Step 5: Solve for x
    x = 2,830,911.50/2,027.65
  6. Step 6: Final answer
    x = 1,396.15

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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.