Home / 3,114.36-4,297.56-1,935.20

Finding the Fourth Proportional to 3,114.36, 4,297.56 and 1,935.20

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Solution

The fourth proportional to 3,114.36, 4,297.56 and 1,935.20 is: 2,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.36 : 4,297.56 = 1,935.20 : x
  2. Step 2: Convert to fraction form
    3,114.36/4,297.56 = 1,935.20/x
  3. Step 3: Cross multiply
    3,114.36x = 4,297.56 × 1,935.20
  4. Step 4: Simplify right side
    3,114.36x = 8,316,638.11
  5. Step 5: Solve for x
    x = 8,316,638.11/3,114.36
  6. Step 6: Final answer
    x = 2,670.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.