Home / 5,359.90-8,040.72-1,661.26

Finding the Fourth Proportional to 5,359.90, 8,040.72 and 1,661.26

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Solution

The fourth proportional to 5,359.90, 8,040.72 and 1,661.26 is: 2,492.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.90 : 8,040.72 = 1,661.26 : x
  2. Step 2: Convert to fraction form
    5,359.90/8,040.72 = 1,661.26/x
  3. Step 3: Cross multiply
    5,359.90x = 8,040.72 × 1,661.26
  4. Step 4: Simplify right side
    5,359.90x = 13,357,726.51
  5. Step 5: Solve for x
    x = 13,357,726.51/5,359.90
  6. Step 6: Final answer
    x = 2,492.16

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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.