Home / 2,841.90-4,239.64-2,765.35

Finding the Fourth Proportional to 2,841.90, 4,239.64 and 2,765.35

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Solution

The fourth proportional to 2,841.90, 4,239.64 and 2,765.35 is: 4,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.90 : 4,239.64 = 2,765.35 : x
  2. Step 2: Convert to fraction form
    2,841.90/4,239.64 = 2,765.35/x
  3. Step 3: Cross multiply
    2,841.90x = 4,239.64 × 2,765.35
  4. Step 4: Simplify right side
    2,841.90x = 11,724,088.47
  5. Step 5: Solve for x
    x = 11,724,088.47/2,841.90
  6. Step 6: Final answer
    x = 4,125.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.