Home / 5,186.28-7,155.90-3,090

Finding the Fourth Proportional to 5,186.28, 7,155.90 and 3,090

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Solution

The fourth proportional to 5,186.28, 7,155.90 and 3,090 is: 4,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.28 : 7,155.90 = 3,090 : x
  2. Step 2: Convert to fraction form
    5,186.28/7,155.90 = 3,090/x
  3. Step 3: Cross multiply
    5,186.28x = 7,155.90 × 3,090
  4. Step 4: Simplify right side
    5,186.28x = 22,111,731
  5. Step 5: Solve for x
    x = 22,111,731/5,186.28
  6. Step 6: Final answer
    x = 4,263.51

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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.