Home / 2,920.61-4,030.68-1,662.05

Finding the Fourth Proportional to 2,920.61, 4,030.68 and 1,662.05

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Solution

The fourth proportional to 2,920.61, 4,030.68 and 1,662.05 is: 2,293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.61 : 4,030.68 = 1,662.05 : x
  2. Step 2: Convert to fraction form
    2,920.61/4,030.68 = 1,662.05/x
  3. Step 3: Cross multiply
    2,920.61x = 4,030.68 × 1,662.05
  4. Step 4: Simplify right side
    2,920.61x = 6,699,201.77
  5. Step 5: Solve for x
    x = 6,699,201.77/2,920.61
  6. Step 6: Final answer
    x = 2,293.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.