Home / 2,352.88-3,246.93-1,290.67

Finding the Fourth Proportional to 2,352.88, 3,246.93 and 1,290.67

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Solution

The fourth proportional to 2,352.88, 3,246.93 and 1,290.67 is: 1,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,352.88 : 3,246.93 = 1,290.67 : x
  2. Step 2: Convert to fraction form
    2,352.88/3,246.93 = 1,290.67/x
  3. Step 3: Cross multiply
    2,352.88x = 3,246.93 × 1,290.67
  4. Step 4: Simplify right side
    2,352.88x = 4,190,698.91
  5. Step 5: Solve for x
    x = 4,190,698.91/2,352.88
  6. Step 6: Final answer
    x = 1,781.10

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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.