Home / 1,653.60-2,477.28-1,381.44

Finding the Fourth Proportional to 1,653.60, 2,477.28 and 1,381.44

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Solution

The fourth proportional to 1,653.60, 2,477.28 and 1,381.44 is: 2,069.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.60 : 2,477.28 = 1,381.44 : x
  2. Step 2: Convert to fraction form
    1,653.60/2,477.28 = 1,381.44/x
  3. Step 3: Cross multiply
    1,653.60x = 2,477.28 × 1,381.44
  4. Step 4: Simplify right side
    1,653.60x = 3,422,213.68
  5. Step 5: Solve for x
    x = 3,422,213.68/1,653.60
  6. Step 6: Final answer
    x = 2,069.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.