Home / 5,167.62-7,128.81-3,070.26

Finding the Fourth Proportional to 5,167.62, 7,128.81 and 3,070.26

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Solution

The fourth proportional to 5,167.62, 7,128.81 and 3,070.26 is: 4,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.62 : 7,128.81 = 3,070.26 : x
  2. Step 2: Convert to fraction form
    5,167.62/7,128.81 = 3,070.26/x
  3. Step 3: Cross multiply
    5,167.62x = 7,128.81 × 3,070.26
  4. Step 4: Simplify right side
    5,167.62x = 21,887,300.19
  5. Step 5: Solve for x
    x = 21,887,300.19/5,167.62
  6. Step 6: Final answer
    x = 4,235.47

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1.5x scale

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.