Home / 1,651.56-2,476.80-1,039.20

Finding the Fourth Proportional to 1,651.56, 2,476.80 and 1,039.20

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Solution

The fourth proportional to 1,651.56, 2,476.80 and 1,039.20 is: 1,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.56 : 2,476.80 = 1,039.20 : x
  2. Step 2: Convert to fraction form
    1,651.56/2,476.80 = 1,039.20/x
  3. Step 3: Cross multiply
    1,651.56x = 2,476.80 × 1,039.20
  4. Step 4: Simplify right side
    1,651.56x = 2,573,890.56
  5. Step 5: Solve for x
    x = 2,573,890.56/1,651.56
  6. Step 6: Final answer
    x = 1,558.46

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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.