Home / 5,079.07-7,009.27-2,840.90

Finding the Fourth Proportional to 5,079.07, 7,009.27 and 2,840.90

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Solution

The fourth proportional to 5,079.07, 7,009.27 and 2,840.90 is: 3,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.07 : 7,009.27 = 2,840.90 : x
  2. Step 2: Convert to fraction form
    5,079.07/7,009.27 = 2,840.90/x
  3. Step 3: Cross multiply
    5,079.07x = 7,009.27 × 2,840.90
  4. Step 4: Simplify right side
    5,079.07x = 19,912,592.99
  5. Step 5: Solve for x
    x = 19,912,592.99/5,079.07
  6. Step 6: Final answer
    x = 3,920.52

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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.