Home / 3,213.40-4,820.10-1,022.35

Finding the Fourth Proportional to 3,213.40, 4,820.10 and 1,022.35

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Solution

The fourth proportional to 3,213.40, 4,820.10 and 1,022.35 is: 1,533.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.40 : 4,820.10 = 1,022.35 : x
  2. Step 2: Convert to fraction form
    3,213.40/4,820.10 = 1,022.35/x
  3. Step 3: Cross multiply
    3,213.40x = 4,820.10 × 1,022.35
  4. Step 4: Simplify right side
    3,213.40x = 4,927,829.24
  5. Step 5: Solve for x
    x = 4,927,829.24/3,213.40
  6. Step 6: Final answer
    x = 1,533.53

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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.