Home / 5,317.59-7,975.77-1,422.30

Finding the Fourth Proportional to 5,317.59, 7,975.77 and 1,422.30

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Solution

The fourth proportional to 5,317.59, 7,975.77 and 1,422.30 is: 2,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.59 : 7,975.77 = 1,422.30 : x
  2. Step 2: Convert to fraction form
    5,317.59/7,975.77 = 1,422.30/x
  3. Step 3: Cross multiply
    5,317.59x = 7,975.77 × 1,422.30
  4. Step 4: Simplify right side
    5,317.59x = 11,343,897.79
  5. Step 5: Solve for x
    x = 11,343,897.79/5,317.59
  6. Step 6: Final answer
    x = 2,133.28

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1.5x scale

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.