Home / 4,680.64-7,020.12-1,217.68

Finding the Fourth Proportional to 4,680.64, 7,020.12 and 1,217.68

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Solution

The fourth proportional to 4,680.64, 7,020.12 and 1,217.68 is: 1,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.64 : 7,020.12 = 1,217.68 : x
  2. Step 2: Convert to fraction form
    4,680.64/7,020.12 = 1,217.68/x
  3. Step 3: Cross multiply
    4,680.64x = 7,020.12 × 1,217.68
  4. Step 4: Simplify right side
    4,680.64x = 8,548,259.72
  5. Step 5: Solve for x
    x = 8,548,259.72/4,680.64
  6. Step 6: Final answer
    x = 1,826.30

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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.