Home / 3,235.04-4,842.80-2,078.40

Finding the Fourth Proportional to 3,235.04, 4,842.80 and 2,078.40

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Solution

The fourth proportional to 3,235.04, 4,842.80 and 2,078.40 is: 3,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.04 : 4,842.80 = 2,078.40 : x
  2. Step 2: Convert to fraction form
    3,235.04/4,842.80 = 2,078.40/x
  3. Step 3: Cross multiply
    3,235.04x = 4,842.80 × 2,078.40
  4. Step 4: Simplify right side
    3,235.04x = 10,065,275.52
  5. Step 5: Solve for x
    x = 10,065,275.52/3,235.04
  6. Step 6: Final answer
    x = 3,111.33

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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.