Home / 2,868.48-4,300.80-1,405.68

Finding the Fourth Proportional to 2,868.48, 4,300.80 and 1,405.68

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Solution

The fourth proportional to 2,868.48, 4,300.80 and 1,405.68 is: 2,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.48 : 4,300.80 = 1,405.68 : x
  2. Step 2: Convert to fraction form
    2,868.48/4,300.80 = 1,405.68/x
  3. Step 3: Cross multiply
    2,868.48x = 4,300.80 × 1,405.68
  4. Step 4: Simplify right side
    2,868.48x = 6,045,548.54
  5. Step 5: Solve for x
    x = 6,045,548.54/2,868.48
  6. Step 6: Final answer
    x = 2,107.58

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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.