Home / 2,920.08-4,380.99-1,253.31

Finding the Fourth Proportional to 2,920.08, 4,380.99 and 1,253.31

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Solution

The fourth proportional to 2,920.08, 4,380.99 and 1,253.31 is: 1,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.08 : 4,380.99 = 1,253.31 : x
  2. Step 2: Convert to fraction form
    2,920.08/4,380.99 = 1,253.31/x
  3. Step 3: Cross multiply
    2,920.08x = 4,380.99 × 1,253.31
  4. Step 4: Simplify right side
    2,920.08x = 5,490,717.45
  5. Step 5: Solve for x
    x = 5,490,717.45/2,920.08
  6. Step 6: Final answer
    x = 1,880.33

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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.