Home / 2,858.24-4,285.80-2,668.40

Finding the Fourth Proportional to 2,858.24, 4,285.80 and 2,668.40

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Solution

The fourth proportional to 2,858.24, 4,285.80 and 2,668.40 is: 4,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.24 : 4,285.80 = 2,668.40 : x
  2. Step 2: Convert to fraction form
    2,858.24/4,285.80 = 2,668.40/x
  3. Step 3: Cross multiply
    2,858.24x = 4,285.80 × 2,668.40
  4. Step 4: Simplify right side
    2,858.24x = 11,436,228.72
  5. Step 5: Solve for x
    x = 11,436,228.72/2,858.24
  6. Step 6: Final answer
    x = 4,001.14

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1.5x scale

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.