Home / 4,686.31-7,030.48-1,399.67

Finding the Fourth Proportional to 4,686.31, 7,030.48 and 1,399.67

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Solution

The fourth proportional to 4,686.31, 7,030.48 and 1,399.67 is: 2,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,686.31 : 7,030.48 = 1,399.67 : x
  2. Step 2: Convert to fraction form
    4,686.31/7,030.48 = 1,399.67/x
  3. Step 3: Cross multiply
    4,686.31x = 7,030.48 × 1,399.67
  4. Step 4: Simplify right side
    4,686.31x = 9,840,351.94
  5. Step 5: Solve for x
    x = 9,840,351.94/4,686.31
  6. Step 6: Final answer
    x = 2,099.81

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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.