Home / 7,021.40-10,522.95-2,856.54

Finding the Fourth Proportional to 7,021.40, 10,522.95 and 2,856.54

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Solution

The fourth proportional to 7,021.40, 10,522.95 and 2,856.54 is: 4,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.40 : 10,522.95 = 2,856.54 : x
  2. Step 2: Convert to fraction form
    7,021.40/10,522.95 = 2,856.54/x
  3. Step 3: Cross multiply
    7,021.40x = 10,522.95 × 2,856.54
  4. Step 4: Simplify right side
    7,021.40x = 30,059,227.59
  5. Step 5: Solve for x
    x = 30,059,227.59/7,021.40
  6. Step 6: Final answer
    x = 4,281.09

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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.