Home / 5,021.55-6,929.80-2,783.45

Finding the Fourth Proportional to 5,021.55, 6,929.80 and 2,783.45

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Solution

The fourth proportional to 5,021.55, 6,929.80 and 2,783.45 is: 3,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.55 : 6,929.80 = 2,783.45 : x
  2. Step 2: Convert to fraction form
    5,021.55/6,929.80 = 2,783.45/x
  3. Step 3: Cross multiply
    5,021.55x = 6,929.80 × 2,783.45
  4. Step 4: Simplify right side
    5,021.55x = 19,288,762.18
  5. Step 5: Solve for x
    x = 19,288,762.18/5,021.55
  6. Step 6: Final answer
    x = 3,841.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.