Home / 1,879.17-2,592.05-1,290.03

Finding the Fourth Proportional to 1,879.17, 2,592.05 and 1,290.03

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Solution

The fourth proportional to 1,879.17, 2,592.05 and 1,290.03 is: 1,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.17 : 2,592.05 = 1,290.03 : x
  2. Step 2: Convert to fraction form
    1,879.17/2,592.05 = 1,290.03/x
  3. Step 3: Cross multiply
    1,879.17x = 2,592.05 × 1,290.03
  4. Step 4: Simplify right side
    1,879.17x = 3,343,815.81
  5. Step 5: Solve for x
    x = 3,343,815.81/1,879.17
  6. Step 6: Final answer
    x = 1,779.41

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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.