Home / 2,389.68-3,577.87-1,802.91

Finding the Fourth Proportional to 2,389.68, 3,577.87 and 1,802.91

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Solution

The fourth proportional to 2,389.68, 3,577.87 and 1,802.91 is: 2,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.68 : 3,577.87 = 1,802.91 : x
  2. Step 2: Convert to fraction form
    2,389.68/3,577.87 = 1,802.91/x
  3. Step 3: Cross multiply
    2,389.68x = 3,577.87 × 1,802.91
  4. Step 4: Simplify right side
    2,389.68x = 6,450,573.15
  5. Step 5: Solve for x
    x = 6,450,573.15/2,389.68
  6. Step 6: Final answer
    x = 2,699.35

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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.