Home / 1,690.22-2,332.58-944.16

Finding the Fourth Proportional to 1,690.22, 2,332.58 and 944.16

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Solution

The fourth proportional to 1,690.22, 2,332.58 and 944.16 is: 1,302.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.22 : 2,332.58 = 944.16 : x
  2. Step 2: Convert to fraction form
    1,690.22/2,332.58 = 944.16/x
  3. Step 3: Cross multiply
    1,690.22x = 2,332.58 × 944.16
  4. Step 4: Simplify right side
    1,690.22x = 2,202,328.73
  5. Step 5: Solve for x
    x = 2,202,328.73/1,690.22
  6. Step 6: Final answer
    x = 1,302.98

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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.