Home / 4,289.70-5,918.49-2,520.30

Finding the Fourth Proportional to 4,289.70, 5,918.49 and 2,520.30

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Solution

The fourth proportional to 4,289.70, 5,918.49 and 2,520.30 is: 3,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.70 : 5,918.49 = 2,520.30 : x
  2. Step 2: Convert to fraction form
    4,289.70/5,918.49 = 2,520.30/x
  3. Step 3: Cross multiply
    4,289.70x = 5,918.49 × 2,520.30
  4. Step 4: Simplify right side
    4,289.70x = 14,916,370.35
  5. Step 5: Solve for x
    x = 14,916,370.35/4,289.70
  6. Step 6: Final answer
    x = 3,477.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.