Home / 5,680.30-8,519.16-1,783.78

Finding the Fourth Proportional to 5,680.30, 8,519.16 and 1,783.78

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Solution

The fourth proportional to 5,680.30, 8,519.16 and 1,783.78 is: 2,675.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.30 : 8,519.16 = 1,783.78 : x
  2. Step 2: Convert to fraction form
    5,680.30/8,519.16 = 1,783.78/x
  3. Step 3: Cross multiply
    5,680.30x = 8,519.16 × 1,783.78
  4. Step 4: Simplify right side
    5,680.30x = 15,196,307.22
  5. Step 5: Solve for x
    x = 15,196,307.22/5,680.30
  6. Step 6: Final answer
    x = 2,675.26

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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.