Home / 7,224.80-10,829.40-3,518.84

Finding the Fourth Proportional to 7,224.80, 10,829.40 and 3,518.84

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Solution

The fourth proportional to 7,224.80, 10,829.40 and 3,518.84 is: 5,274.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.80 : 10,829.40 = 3,518.84 : x
  2. Step 2: Convert to fraction form
    7,224.80/10,829.40 = 3,518.84/x
  3. Step 3: Cross multiply
    7,224.80x = 10,829.40 × 3,518.84
  4. Step 4: Simplify right side
    7,224.80x = 38,106,925.90
  5. Step 5: Solve for x
    x = 38,106,925.90/7,224.80
  6. Step 6: Final answer
    x = 5,274.46

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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.