Home / 1,690.18-2,332.35-944.11

Finding the Fourth Proportional to 1,690.18, 2,332.35 and 944.11

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Solution

The fourth proportional to 1,690.18, 2,332.35 and 944.11 is: 1,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.18 : 2,332.35 = 944.11 : x
  2. Step 2: Convert to fraction form
    1,690.18/2,332.35 = 944.11/x
  3. Step 3: Cross multiply
    1,690.18x = 2,332.35 × 944.11
  4. Step 4: Simplify right side
    1,690.18x = 2,201,994.96
  5. Step 5: Solve for x
    x = 2,201,994.96/1,690.18
  6. Step 6: Final answer
    x = 1,302.82

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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.