Home / 2,114.28-3,175.05-1,297.35

Finding the Fourth Proportional to 2,114.28, 3,175.05 and 1,297.35

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Solution

The fourth proportional to 2,114.28, 3,175.05 and 1,297.35 is: 1,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.28 : 3,175.05 = 1,297.35 : x
  2. Step 2: Convert to fraction form
    2,114.28/3,175.05 = 1,297.35/x
  3. Step 3: Cross multiply
    2,114.28x = 3,175.05 × 1,297.35
  4. Step 4: Simplify right side
    2,114.28x = 4,119,151.12
  5. Step 5: Solve for x
    x = 4,119,151.12/2,114.28
  6. Step 6: Final answer
    x = 1,948.25

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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.