Home / 2,881.71-4,323.92-1,420.07

Finding the Fourth Proportional to 2,881.71, 4,323.92 and 1,420.07

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Solution

The fourth proportional to 2,881.71, 4,323.92 and 1,420.07 is: 2,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.71 : 4,323.92 = 1,420.07 : x
  2. Step 2: Convert to fraction form
    2,881.71/4,323.92 = 1,420.07/x
  3. Step 3: Cross multiply
    2,881.71x = 4,323.92 × 1,420.07
  4. Step 4: Simplify right side
    2,881.71x = 6,140,240.35
  5. Step 5: Solve for x
    x = 6,140,240.35/2,881.71
  6. Step 6: Final answer
    x = 2,130.76

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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.