Home / 5,358.90-7,395.31-3,122.31

Finding the Fourth Proportional to 5,358.90, 7,395.31 and 3,122.31

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Solution

The fourth proportional to 5,358.90, 7,395.31 and 3,122.31 is: 4,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.90 : 7,395.31 = 3,122.31 : x
  2. Step 2: Convert to fraction form
    5,358.90/7,395.31 = 3,122.31/x
  3. Step 3: Cross multiply
    5,358.90x = 7,395.31 × 3,122.31
  4. Step 4: Simplify right side
    5,358.90x = 23,090,482.00
  5. Step 5: Solve for x
    x = 23,090,482.00/5,358.90
  6. Step 6: Final answer
    x = 4,308.81

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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.