Home / 4,740.63-7,111.77-1,620.95

Finding the Fourth Proportional to 4,740.63, 7,111.77 and 1,620.95

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Solution

The fourth proportional to 4,740.63, 7,111.77 and 1,620.95 is: 2,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.63 : 7,111.77 = 1,620.95 : x
  2. Step 2: Convert to fraction form
    4,740.63/7,111.77 = 1,620.95/x
  3. Step 3: Cross multiply
    4,740.63x = 7,111.77 × 1,620.95
  4. Step 4: Simplify right side
    4,740.63x = 11,527,781.94
  5. Step 5: Solve for x
    x = 11,527,781.94/4,740.63
  6. Step 6: Final answer
    x = 2,431.70

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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.