Home / 7,918.89-10,928.08-4,382.22

Finding the Fourth Proportional to 7,918.89, 10,928.08 and 4,382.22

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Solution

The fourth proportional to 7,918.89, 10,928.08 and 4,382.22 is: 6,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.89 : 10,928.08 = 4,382.22 : x
  2. Step 2: Convert to fraction form
    7,918.89/10,928.08 = 4,382.22/x
  3. Step 3: Cross multiply
    7,918.89x = 10,928.08 × 4,382.22
  4. Step 4: Simplify right side
    7,918.89x = 47,889,250.74
  5. Step 5: Solve for x
    x = 47,889,250.74/7,918.89
  6. Step 6: Final answer
    x = 6,047.47

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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.