Home / 5,355.37-7,390.14-3,117.08

Finding the Fourth Proportional to 5,355.37, 7,390.14 and 3,117.08

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Solution

The fourth proportional to 5,355.37, 7,390.14 and 3,117.08 is: 4,301.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.37 : 7,390.14 = 3,117.08 : x
  2. Step 2: Convert to fraction form
    5,355.37/7,390.14 = 3,117.08/x
  3. Step 3: Cross multiply
    5,355.37x = 7,390.14 × 3,117.08
  4. Step 4: Simplify right side
    5,355.37x = 23,035,664.38
  5. Step 5: Solve for x
    x = 23,035,664.38/5,355.37
  6. Step 6: Final answer
    x = 4,301.42

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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.