Home / 1,564.93-2,157.31-1,191.26

Finding the Fourth Proportional to 1,564.93, 2,157.31 and 1,191.26

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Solution

The fourth proportional to 1,564.93, 2,157.31 and 1,191.26 is: 1,642.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.93 : 2,157.31 = 1,191.26 : x
  2. Step 2: Convert to fraction form
    1,564.93/2,157.31 = 1,191.26/x
  3. Step 3: Cross multiply
    1,564.93x = 2,157.31 × 1,191.26
  4. Step 4: Simplify right side
    1,564.93x = 2,569,911.15
  5. Step 5: Solve for x
    x = 2,569,911.15/1,564.93
  6. Step 6: Final answer
    x = 1,642.19

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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.