Home / 4,990.46-7,486.50-1,871.58

Finding the Fourth Proportional to 4,990.46, 7,486.50 and 1,871.58

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Solution

The fourth proportional to 4,990.46, 7,486.50 and 1,871.58 is: 2,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.46 : 7,486.50 = 1,871.58 : x
  2. Step 2: Convert to fraction form
    4,990.46/7,486.50 = 1,871.58/x
  3. Step 3: Cross multiply
    4,990.46x = 7,486.50 × 1,871.58
  4. Step 4: Simplify right side
    4,990.46x = 14,011,583.67
  5. Step 5: Solve for x
    x = 14,011,583.67/4,990.46
  6. Step 6: Final answer
    x = 2,807.67

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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.