Home / 2,177.23-3,266.67-1,312.15

Finding the Fourth Proportional to 2,177.23, 3,266.67 and 1,312.15

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Solution

The fourth proportional to 2,177.23, 3,266.67 and 1,312.15 is: 1,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.23 : 3,266.67 = 1,312.15 : x
  2. Step 2: Convert to fraction form
    2,177.23/3,266.67 = 1,312.15/x
  3. Step 3: Cross multiply
    2,177.23x = 3,266.67 × 1,312.15
  4. Step 4: Simplify right side
    2,177.23x = 4,286,361.04
  5. Step 5: Solve for x
    x = 4,286,361.04/2,177.23
  6. Step 6: Final answer
    x = 1,968.72

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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.