Home / 2,842.80-4,285.68-2,435.28

Finding the Fourth Proportional to 2,842.80, 4,285.68 and 2,435.28

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Solution

The fourth proportional to 2,842.80, 4,285.68 and 2,435.28 is: 3,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.80 : 4,285.68 = 2,435.28 : x
  2. Step 2: Convert to fraction form
    2,842.80/4,285.68 = 2,435.28/x
  3. Step 3: Cross multiply
    2,842.80x = 4,285.68 × 2,435.28
  4. Step 4: Simplify right side
    2,842.80x = 10,436,830.79
  5. Step 5: Solve for x
    x = 10,436,830.79/2,842.80
  6. Step 6: Final answer
    x = 3,671.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.