Home / 1,379.19-2,064.93-1,053.57

Finding the Fourth Proportional to 1,379.19, 2,064.93 and 1,053.57

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Solution

The fourth proportional to 1,379.19, 2,064.93 and 1,053.57 is: 1,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.19 : 2,064.93 = 1,053.57 : x
  2. Step 2: Convert to fraction form
    1,379.19/2,064.93 = 1,053.57/x
  3. Step 3: Cross multiply
    1,379.19x = 2,064.93 × 1,053.57
  4. Step 4: Simplify right side
    1,379.19x = 2,175,548.30
  5. Step 5: Solve for x
    x = 2,175,548.30/1,379.19
  6. Step 6: Final answer
    x = 1,577.41

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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.