Home / 1,620.59-2,430.27-1,277.96

Finding the Fourth Proportional to 1,620.59, 2,430.27 and 1,277.96

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Solution

The fourth proportional to 1,620.59, 2,430.27 and 1,277.96 is: 1,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.59 : 2,430.27 = 1,277.96 : x
  2. Step 2: Convert to fraction form
    1,620.59/2,430.27 = 1,277.96/x
  3. Step 3: Cross multiply
    1,620.59x = 2,430.27 × 1,277.96
  4. Step 4: Simplify right side
    1,620.59x = 3,105,775.70
  5. Step 5: Solve for x
    x = 3,105,775.70/1,620.59
  6. Step 6: Final answer
    x = 1,916.45

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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.