Home / 2,384.12-3,289.75-1,321.63

Finding the Fourth Proportional to 2,384.12, 3,289.75 and 1,321.63

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Solution

The fourth proportional to 2,384.12, 3,289.75 and 1,321.63 is: 1,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.12 : 3,289.75 = 1,321.63 : x
  2. Step 2: Convert to fraction form
    2,384.12/3,289.75 = 1,321.63/x
  3. Step 3: Cross multiply
    2,384.12x = 3,289.75 × 1,321.63
  4. Step 4: Simplify right side
    2,384.12x = 4,347,820.76
  5. Step 5: Solve for x
    x = 4,347,820.76/2,384.12
  6. Step 6: Final answer
    x = 1,823.66

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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.