Home / 2,153.32-2,972.06-1,368.44

Finding the Fourth Proportional to 2,153.32, 2,972.06 and 1,368.44

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Solution

The fourth proportional to 2,153.32, 2,972.06 and 1,368.44 is: 1,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.32 : 2,972.06 = 1,368.44 : x
  2. Step 2: Convert to fraction form
    2,153.32/2,972.06 = 1,368.44/x
  3. Step 3: Cross multiply
    2,153.32x = 2,972.06 × 1,368.44
  4. Step 4: Simplify right side
    2,153.32x = 4,067,085.79
  5. Step 5: Solve for x
    x = 4,067,085.79/2,153.32
  6. Step 6: Final answer
    x = 1,888.75

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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.