Home / 6,435.31-8,881.68-4,077.67

Finding the Fourth Proportional to 6,435.31, 8,881.68 and 4,077.67

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Solution

The fourth proportional to 6,435.31, 8,881.68 and 4,077.67 is: 5,627.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,435.31 : 8,881.68 = 4,077.67 : x
  2. Step 2: Convert to fraction form
    6,435.31/8,881.68 = 4,077.67/x
  3. Step 3: Cross multiply
    6,435.31x = 8,881.68 × 4,077.67
  4. Step 4: Simplify right side
    6,435.31x = 36,216,560.09
  5. Step 5: Solve for x
    x = 36,216,560.09/6,435.31
  6. Step 6: Final answer
    x = 5,627.79

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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.