Home / 4,301.40-6,420.75-3,783

Finding the Fourth Proportional to 4,301.40, 6,420.75 and 3,783

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Solution

The fourth proportional to 4,301.40, 6,420.75 and 3,783 is: 5,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,301.40 : 6,420.75 = 3,783 : x
  2. Step 2: Convert to fraction form
    4,301.40/6,420.75 = 3,783/x
  3. Step 3: Cross multiply
    4,301.40x = 6,420.75 × 3,783
  4. Step 4: Simplify right side
    4,301.40x = 24,289,697.25
  5. Step 5: Solve for x
    x = 24,289,697.25/4,301.40
  6. Step 6: Final answer
    x = 5,646.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.