Home / 4,720.19-6,518.58-3,889.13

Finding the Fourth Proportional to 4,720.19, 6,518.58 and 3,889.13

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Solution

The fourth proportional to 4,720.19, 6,518.58 and 3,889.13 is: 5,370.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.19 : 6,518.58 = 3,889.13 : x
  2. Step 2: Convert to fraction form
    4,720.19/6,518.58 = 3,889.13/x
  3. Step 3: Cross multiply
    4,720.19x = 6,518.58 × 3,889.13
  4. Step 4: Simplify right side
    4,720.19x = 25,351,605.04
  5. Step 5: Solve for x
    x = 25,351,605.04/4,720.19
  6. Step 6: Final answer
    x = 5,370.89

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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.