Home / 2,902.48-4,352.61-1,420.79

Finding the Fourth Proportional to 2,902.48, 4,352.61 and 1,420.79

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Solution

The fourth proportional to 2,902.48, 4,352.61 and 1,420.79 is: 2,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.48 : 4,352.61 = 1,420.79 : x
  2. Step 2: Convert to fraction form
    2,902.48/4,352.61 = 1,420.79/x
  3. Step 3: Cross multiply
    2,902.48x = 4,352.61 × 1,420.79
  4. Step 4: Simplify right side
    2,902.48x = 6,184,126.78
  5. Step 5: Solve for x
    x = 6,184,126.78/2,902.48
  6. Step 6: Final answer
    x = 2,130.64

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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.