Home / 7,840.09-10,821.45-4,484.67

Finding the Fourth Proportional to 7,840.09, 10,821.45 and 4,484.67

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Solution

The fourth proportional to 7,840.09, 10,821.45 and 4,484.67 is: 6,190.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.09 : 10,821.45 = 4,484.67 : x
  2. Step 2: Convert to fraction form
    7,840.09/10,821.45 = 4,484.67/x
  3. Step 3: Cross multiply
    7,840.09x = 10,821.45 × 4,484.67
  4. Step 4: Simplify right side
    7,840.09x = 48,530,632.17
  5. Step 5: Solve for x
    x = 48,530,632.17/7,840.09
  6. Step 6: Final answer
    x = 6,190.06

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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.