Home / 2,315.12-3,485.18-2,114.24

Finding the Fourth Proportional to 2,315.12, 3,485.18 and 2,114.24

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Solution

The fourth proportional to 2,315.12, 3,485.18 and 2,114.24 is: 3,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.12 : 3,485.18 = 2,114.24 : x
  2. Step 2: Convert to fraction form
    2,315.12/3,485.18 = 2,114.24/x
  3. Step 3: Cross multiply
    2,315.12x = 3,485.18 × 2,114.24
  4. Step 4: Simplify right side
    2,315.12x = 7,368,506.96
  5. Step 5: Solve for x
    x = 7,368,506.96/2,315.12
  6. Step 6: Final answer
    x = 3,182.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.