Home / 7,826.34-10,800.21-4,289.58

Finding the Fourth Proportional to 7,826.34, 10,800.21 and 4,289.58

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Solution

The fourth proportional to 7,826.34, 10,800.21 and 4,289.58 is: 5,919.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.34 : 10,800.21 = 4,289.58 : x
  2. Step 2: Convert to fraction form
    7,826.34/10,800.21 = 4,289.58/x
  3. Step 3: Cross multiply
    7,826.34x = 10,800.21 × 4,289.58
  4. Step 4: Simplify right side
    7,826.34x = 46,328,364.81
  5. Step 5: Solve for x
    x = 46,328,364.81/7,826.34
  6. Step 6: Final answer
    x = 5,919.54

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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.