Home / 7,820.21-11,724.45-2,888.93

Finding the Fourth Proportional to 7,820.21, 11,724.45 and 2,888.93

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Solution

The fourth proportional to 7,820.21, 11,724.45 and 2,888.93 is: 4,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.21 : 11,724.45 = 2,888.93 : x
  2. Step 2: Convert to fraction form
    7,820.21/11,724.45 = 2,888.93/x
  3. Step 3: Cross multiply
    7,820.21x = 11,724.45 × 2,888.93
  4. Step 4: Simplify right side
    7,820.21x = 33,871,056.72
  5. Step 5: Solve for x
    x = 33,871,056.72/7,820.21
  6. Step 6: Final answer
    x = 4,331.22

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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.