Home / 2,900.93-4,349.34-1,420.61

Finding the Fourth Proportional to 2,900.93, 4,349.34 and 1,420.61

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Solution

The fourth proportional to 2,900.93, 4,349.34 and 1,420.61 is: 2,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.93 : 4,349.34 = 1,420.61 : x
  2. Step 2: Convert to fraction form
    2,900.93/4,349.34 = 1,420.61/x
  3. Step 3: Cross multiply
    2,900.93x = 4,349.34 × 1,420.61
  4. Step 4: Simplify right side
    2,900.93x = 6,178,694.15
  5. Step 5: Solve for x
    x = 6,178,694.15/2,900.93
  6. Step 6: Final answer
    x = 2,129.90

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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.