Home / 7,218.84-10,820.05-3,056.25

Finding the Fourth Proportional to 7,218.84, 10,820.05 and 3,056.25

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Solution

The fourth proportional to 7,218.84, 10,820.05 and 3,056.25 is: 4,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.84 : 10,820.05 = 3,056.25 : x
  2. Step 2: Convert to fraction form
    7,218.84/10,820.05 = 3,056.25/x
  3. Step 3: Cross multiply
    7,218.84x = 10,820.05 × 3,056.25
  4. Step 4: Simplify right side
    7,218.84x = 33,068,777.81
  5. Step 5: Solve for x
    x = 33,068,777.81/7,218.84
  6. Step 6: Final answer
    x = 4,580.90

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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.