Home / 5,130.94-7,690.33-2,355.27

Finding the Fourth Proportional to 5,130.94, 7,690.33 and 2,355.27

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Solution

The fourth proportional to 5,130.94, 7,690.33 and 2,355.27 is: 3,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.94 : 7,690.33 = 2,355.27 : x
  2. Step 2: Convert to fraction form
    5,130.94/7,690.33 = 2,355.27/x
  3. Step 3: Cross multiply
    5,130.94x = 7,690.33 × 2,355.27
  4. Step 4: Simplify right side
    5,130.94x = 18,112,803.54
  5. Step 5: Solve for x
    x = 18,112,803.54/5,130.94
  6. Step 6: Final answer
    x = 3,530.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.