Home / 5,289.63-7,887.88-4,920.27

Finding the Fourth Proportional to 5,289.63, 7,887.88 and 4,920.27

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Solution

The fourth proportional to 5,289.63, 7,887.88 and 4,920.27 is: 7,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.63 : 7,887.88 = 4,920.27 : x
  2. Step 2: Convert to fraction form
    5,289.63/7,887.88 = 4,920.27/x
  3. Step 3: Cross multiply
    5,289.63x = 7,887.88 × 4,920.27
  4. Step 4: Simplify right side
    5,289.63x = 38,810,487.03
  5. Step 5: Solve for x
    x = 38,810,487.03/5,289.63
  6. Step 6: Final answer
    x = 7,337.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.