Home / 1,695.32-2,339.38-986.93

Finding the Fourth Proportional to 1,695.32, 2,339.38 and 986.93

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Solution

The fourth proportional to 1,695.32, 2,339.38 and 986.93 is: 1,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.32 : 2,339.38 = 986.93 : x
  2. Step 2: Convert to fraction form
    1,695.32/2,339.38 = 986.93/x
  3. Step 3: Cross multiply
    1,695.32x = 2,339.38 × 986.93
  4. Step 4: Simplify right side
    1,695.32x = 2,308,804.30
  5. Step 5: Solve for x
    x = 2,308,804.30/1,695.32
  6. Step 6: Final answer
    x = 1,361.87

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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.