Home / 5,813.37-8,720.46-1,920.51

Finding the Fourth Proportional to 5,813.37, 8,720.46 and 1,920.51

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Solution

The fourth proportional to 5,813.37, 8,720.46 and 1,920.51 is: 2,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.37 : 8,720.46 = 1,920.51 : x
  2. Step 2: Convert to fraction form
    5,813.37/8,720.46 = 1,920.51/x
  3. Step 3: Cross multiply
    5,813.37x = 8,720.46 × 1,920.51
  4. Step 4: Simplify right side
    5,813.37x = 16,747,730.63
  5. Step 5: Solve for x
    x = 16,747,730.63/5,813.37
  6. Step 6: Final answer
    x = 2,880.90

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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.