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Finding the Fourth Proportional to 7,220.51, 10,830.02 and 4,895.45

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Solution

The fourth proportional to 7,220.51, 10,830.02 and 4,895.45 is: 7,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.51 : 10,830.02 = 4,895.45 : x
  2. Step 2: Convert to fraction form
    7,220.51/10,830.02 = 4,895.45/x
  3. Step 3: Cross multiply
    7,220.51x = 10,830.02 × 4,895.45
  4. Step 4: Simplify right side
    7,220.51x = 53,017,783.39
  5. Step 5: Solve for x
    x = 53,017,783.39/7,220.51
  6. Step 6: Final answer
    x = 7,342.67

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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.