Home / 5,072.90-7,009.54-3,904.07

Finding the Fourth Proportional to 5,072.90, 7,009.54 and 3,904.07

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Solution

The fourth proportional to 5,072.90, 7,009.54 and 3,904.07 is: 5,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.90 : 7,009.54 = 3,904.07 : x
  2. Step 2: Convert to fraction form
    5,072.90/7,009.54 = 3,904.07/x
  3. Step 3: Cross multiply
    5,072.90x = 7,009.54 × 3,904.07
  4. Step 4: Simplify right side
    5,072.90x = 27,365,690.02
  5. Step 5: Solve for x
    x = 27,365,690.02/5,072.90
  6. Step 6: Final answer
    x = 5,394.49

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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.