Home / 2,684.71-4,025.40-929.30

Finding the Fourth Proportional to 2,684.71, 4,025.40 and 929.30

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Solution

The fourth proportional to 2,684.71, 4,025.40 and 929.30 is: 1,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.71 : 4,025.40 = 929.30 : x
  2. Step 2: Convert to fraction form
    2,684.71/4,025.40 = 929.30/x
  3. Step 3: Cross multiply
    2,684.71x = 4,025.40 × 929.30
  4. Step 4: Simplify right side
    2,684.71x = 3,740,811.09
  5. Step 5: Solve for x
    x = 3,740,811.09/2,684.71
  6. Step 6: Final answer
    x = 1,393.38

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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.