Home / 3,146.36-4,342-1,968.10

Finding the Fourth Proportional to 3,146.36, 4,342 and 1,968.10

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Solution

The fourth proportional to 3,146.36, 4,342 and 1,968.10 is: 2,715.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.36 : 4,342 = 1,968.10 : x
  2. Step 2: Convert to fraction form
    3,146.36/4,342 = 1,968.10/x
  3. Step 3: Cross multiply
    3,146.36x = 4,342 × 1,968.10
  4. Step 4: Simplify right side
    3,146.36x = 8,545,490.20
  5. Step 5: Solve for x
    x = 8,545,490.20/3,146.36
  6. Step 6: Final answer
    x = 2,715.99

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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.