Home / 1,695.36-2,339.49-949.39

Finding the Fourth Proportional to 1,695.36, 2,339.49 and 949.39

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Solution

The fourth proportional to 1,695.36, 2,339.49 and 949.39 is: 1,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.36 : 2,339.49 = 949.39 : x
  2. Step 2: Convert to fraction form
    1,695.36/2,339.49 = 949.39/x
  3. Step 3: Cross multiply
    1,695.36x = 2,339.49 × 949.39
  4. Step 4: Simplify right side
    1,695.36x = 2,221,088.41
  5. Step 5: Solve for x
    x = 2,221,088.41/1,695.36
  6. Step 6: Final answer
    x = 1,310.10

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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.