Home / 1,696.07-2,338.17-1,247.15

Finding the Fourth Proportional to 1,696.07, 2,338.17 and 1,247.15

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Solution

The fourth proportional to 1,696.07, 2,338.17 and 1,247.15 is: 1,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.07 : 2,338.17 = 1,247.15 : x
  2. Step 2: Convert to fraction form
    1,696.07/2,338.17 = 1,247.15/x
  3. Step 3: Cross multiply
    1,696.07x = 2,338.17 × 1,247.15
  4. Step 4: Simplify right side
    1,696.07x = 2,916,037.02
  5. Step 5: Solve for x
    x = 2,916,037.02/1,696.07
  6. Step 6: Final answer
    x = 1,719.29

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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.