Home / 7,182.31-9,912.44-4,039.51

Finding the Fourth Proportional to 7,182.31, 9,912.44 and 4,039.51

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Solution

The fourth proportional to 7,182.31, 9,912.44 and 4,039.51 is: 5,575.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.31 : 9,912.44 = 4,039.51 : x
  2. Step 2: Convert to fraction form
    7,182.31/9,912.44 = 4,039.51/x
  3. Step 3: Cross multiply
    7,182.31x = 9,912.44 × 4,039.51
  4. Step 4: Simplify right side
    7,182.31x = 40,041,400.50
  5. Step 5: Solve for x
    x = 40,041,400.50/7,182.31
  6. Step 6: Final answer
    x = 5,575.00

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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.