Home / 7,775.28-11,661.80-2,580.48

Finding the Fourth Proportional to 7,775.28, 11,661.80 and 2,580.48

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Solution

The fourth proportional to 7,775.28, 11,661.80 and 2,580.48 is: 3,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.28 : 11,661.80 = 2,580.48 : x
  2. Step 2: Convert to fraction form
    7,775.28/11,661.80 = 2,580.48/x
  3. Step 3: Cross multiply
    7,775.28x = 11,661.80 × 2,580.48
  4. Step 4: Simplify right side
    7,775.28x = 30,093,041.66
  5. Step 5: Solve for x
    x = 30,093,041.66/7,775.28
  6. Step 6: Final answer
    x = 3,870.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.