Home / 2,631.78-3,632.01-1,569.26

Finding the Fourth Proportional to 2,631.78, 3,632.01 and 1,569.26

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Solution

The fourth proportional to 2,631.78, 3,632.01 and 1,569.26 is: 2,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.78 : 3,632.01 = 1,569.26 : x
  2. Step 2: Convert to fraction form
    2,631.78/3,632.01 = 1,569.26/x
  3. Step 3: Cross multiply
    2,631.78x = 3,632.01 × 1,569.26
  4. Step 4: Simplify right side
    2,631.78x = 5,699,577.09
  5. Step 5: Solve for x
    x = 5,699,577.09/2,631.78
  6. Step 6: Final answer
    x = 2,165.67

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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.