Home / 2,386.81-3,293.58-1,338.67

Finding the Fourth Proportional to 2,386.81, 3,293.58 and 1,338.67

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Solution

The fourth proportional to 2,386.81, 3,293.58 and 1,338.67 is: 1,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.81 : 3,293.58 = 1,338.67 : x
  2. Step 2: Convert to fraction form
    2,386.81/3,293.58 = 1,338.67/x
  3. Step 3: Cross multiply
    2,386.81x = 3,293.58 × 1,338.67
  4. Step 4: Simplify right side
    2,386.81x = 4,409,016.74
  5. Step 5: Solve for x
    x = 4,409,016.74/2,386.81
  6. Step 6: Final answer
    x = 1,847.24

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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.