Home / 5,020.80-6,929.19-2,783.40

Finding the Fourth Proportional to 5,020.80, 6,929.19 and 2,783.40

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Solution

The fourth proportional to 5,020.80, 6,929.19 and 2,783.40 is: 3,841.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.80 : 6,929.19 = 2,783.40 : x
  2. Step 2: Convert to fraction form
    5,020.80/6,929.19 = 2,783.40/x
  3. Step 3: Cross multiply
    5,020.80x = 6,929.19 × 2,783.40
  4. Step 4: Simplify right side
    5,020.80x = 19,286,707.45
  5. Step 5: Solve for x
    x = 19,286,707.45/5,020.80
  6. Step 6: Final answer
    x = 3,841.36

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1.5x scale

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.