Home / 4,389.09-6,555.62-3,971.99

Finding the Fourth Proportional to 4,389.09, 6,555.62 and 3,971.99

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Solution

The fourth proportional to 4,389.09, 6,555.62 and 3,971.99 is: 5,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,389.09 : 6,555.62 = 3,971.99 : x
  2. Step 2: Convert to fraction form
    4,389.09/6,555.62 = 3,971.99/x
  3. Step 3: Cross multiply
    4,389.09x = 6,555.62 × 3,971.99
  4. Step 4: Simplify right side
    4,389.09x = 26,038,804.45
  5. Step 5: Solve for x
    x = 26,038,804.45/4,389.09
  6. Step 6: Final answer
    x = 5,932.62

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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.