Home / 1,690.43-2,332.58-944.36

Finding the Fourth Proportional to 1,690.43, 2,332.58 and 944.36

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Solution

The fourth proportional to 1,690.43, 2,332.58 and 944.36 is: 1,303.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.43 : 2,332.58 = 944.36 : x
  2. Step 2: Convert to fraction form
    1,690.43/2,332.58 = 944.36/x
  3. Step 3: Cross multiply
    1,690.43x = 2,332.58 × 944.36
  4. Step 4: Simplify right side
    1,690.43x = 2,202,778.86
  5. Step 5: Solve for x
    x = 2,202,778.86/1,690.43
  6. Step 6: Final answer
    x = 1,303.09

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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.