Home / 4,289.52-6,430.85-2,817.90

Finding the Fourth Proportional to 4,289.52, 6,430.85 and 2,817.90

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Solution

The fourth proportional to 4,289.52, 6,430.85 and 2,817.90 is: 4,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.52 : 6,430.85 = 2,817.90 : x
  2. Step 2: Convert to fraction form
    4,289.52/6,430.85 = 2,817.90/x
  3. Step 3: Cross multiply
    4,289.52x = 6,430.85 × 2,817.90
  4. Step 4: Simplify right side
    4,289.52x = 18,121,478.13
  5. Step 5: Solve for x
    x = 18,121,478.13/4,289.52
  6. Step 6: Final answer
    x = 4,224.59

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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.