Home / 4,807.40-7,211.58-1,729

Finding the Fourth Proportional to 4,807.40, 7,211.58 and 1,729

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Solution

The fourth proportional to 4,807.40, 7,211.58 and 1,729 is: 2,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.40 : 7,211.58 = 1,729 : x
  2. Step 2: Convert to fraction form
    4,807.40/7,211.58 = 1,729/x
  3. Step 3: Cross multiply
    4,807.40x = 7,211.58 × 1,729
  4. Step 4: Simplify right side
    4,807.40x = 12,468,821.82
  5. Step 5: Solve for x
    x = 12,468,821.82/4,807.40
  6. Step 6: Final answer
    x = 2,593.67

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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.