Home / 7,289.38-10,055.91-4,770.55

Finding the Fourth Proportional to 7,289.38, 10,055.91 and 4,770.55

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Solution

The fourth proportional to 7,289.38, 10,055.91 and 4,770.55 is: 6,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.38 : 10,055.91 = 4,770.55 : x
  2. Step 2: Convert to fraction form
    7,289.38/10,055.91 = 4,770.55/x
  3. Step 3: Cross multiply
    7,289.38x = 10,055.91 × 4,770.55
  4. Step 4: Simplify right side
    7,289.38x = 47,972,221.45
  5. Step 5: Solve for x
    x = 47,972,221.45/7,289.38
  6. Step 6: Final answer
    x = 6,581.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.