Home / 7,571.16-10,448.28-4,428.36

Finding the Fourth Proportional to 7,571.16, 10,448.28 and 4,428.36

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Solution

The fourth proportional to 7,571.16, 10,448.28 and 4,428.36 is: 6,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,571.16 : 10,448.28 = 4,428.36 : x
  2. Step 2: Convert to fraction form
    7,571.16/10,448.28 = 4,428.36/x
  3. Step 3: Cross multiply
    7,571.16x = 10,448.28 × 4,428.36
  4. Step 4: Simplify right side
    7,571.16x = 46,268,745.22
  5. Step 5: Solve for x
    x = 46,268,745.22/7,571.16
  6. Step 6: Final answer
    x = 6,111.18

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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.