Home / 1,690.14-2,332.37-944.11

Finding the Fourth Proportional to 1,690.14, 2,332.37 and 944.11

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Solution

The fourth proportional to 1,690.14, 2,332.37 and 944.11 is: 1,302.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.14 : 2,332.37 = 944.11 : x
  2. Step 2: Convert to fraction form
    1,690.14/2,332.37 = 944.11/x
  3. Step 3: Cross multiply
    1,690.14x = 2,332.37 × 944.11
  4. Step 4: Simplify right side
    1,690.14x = 2,202,013.84
  5. Step 5: Solve for x
    x = 2,202,013.84/1,690.14
  6. Step 6: Final answer
    x = 1,302.86

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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.