Home / 2,102.36-3,156.57-1,282.23

Finding the Fourth Proportional to 2,102.36, 3,156.57 and 1,282.23

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Solution

The fourth proportional to 2,102.36, 3,156.57 and 1,282.23 is: 1,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.36 : 3,156.57 = 1,282.23 : x
  2. Step 2: Convert to fraction form
    2,102.36/3,156.57 = 1,282.23/x
  3. Step 3: Cross multiply
    2,102.36x = 3,156.57 × 1,282.23
  4. Step 4: Simplify right side
    2,102.36x = 4,047,448.75
  5. Step 5: Solve for x
    x = 4,047,448.75/2,102.36
  6. Step 6: Final answer
    x = 1,925.20

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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.