Home / 7,918.89-10,928.25-4,775.28

Finding the Fourth Proportional to 7,918.89, 10,928.25 and 4,775.28

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Solution

The fourth proportional to 7,918.89, 10,928.25 and 4,775.28 is: 6,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.89 : 10,928.25 = 4,775.28 : x
  2. Step 2: Convert to fraction form
    7,918.89/10,928.25 = 4,775.28/x
  3. Step 3: Cross multiply
    7,918.89x = 10,928.25 × 4,775.28
  4. Step 4: Simplify right side
    7,918.89x = 52,185,453.66
  5. Step 5: Solve for x
    x = 52,185,453.66/7,918.89
  6. Step 6: Final answer
    x = 6,590.00

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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.