Home / 5,214.32-7,820.65-1,704.30

Finding the Fourth Proportional to 5,214.32, 7,820.65 and 1,704.30

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Solution

The fourth proportional to 5,214.32, 7,820.65 and 1,704.30 is: 2,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.32 : 7,820.65 = 1,704.30 : x
  2. Step 2: Convert to fraction form
    5,214.32/7,820.65 = 1,704.30/x
  3. Step 3: Cross multiply
    5,214.32x = 7,820.65 × 1,704.30
  4. Step 4: Simplify right side
    5,214.32x = 13,328,733.80
  5. Step 5: Solve for x
    x = 13,328,733.80/5,214.32
  6. Step 6: Final answer
    x = 2,556.18

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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.