Home / 5,622.87-8,434.71-1,620.09

Finding the Fourth Proportional to 5,622.87, 8,434.71 and 1,620.09

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Solution

The fourth proportional to 5,622.87, 8,434.71 and 1,620.09 is: 2,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.87 : 8,434.71 = 1,620.09 : x
  2. Step 2: Convert to fraction form
    5,622.87/8,434.71 = 1,620.09/x
  3. Step 3: Cross multiply
    5,622.87x = 8,434.71 × 1,620.09
  4. Step 4: Simplify right side
    5,622.87x = 13,664,989.32
  5. Step 5: Solve for x
    x = 13,664,989.32/5,622.87
  6. Step 6: Final answer
    x = 2,430.25

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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.