Home / 7,126.89-10,690.48-2,196.42

Finding the Fourth Proportional to 7,126.89, 10,690.48 and 2,196.42

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Solution

The fourth proportional to 7,126.89, 10,690.48 and 2,196.42 is: 3,294.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.89 : 10,690.48 = 2,196.42 : x
  2. Step 2: Convert to fraction form
    7,126.89/10,690.48 = 2,196.42/x
  3. Step 3: Cross multiply
    7,126.89x = 10,690.48 × 2,196.42
  4. Step 4: Simplify right side
    7,126.89x = 23,480,746.74
  5. Step 5: Solve for x
    x = 23,480,746.74/7,126.89
  6. Step 6: Final answer
    x = 3,294.67

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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.