Home / 6,438.12-8,881.46-4,051.05

Finding the Fourth Proportional to 6,438.12, 8,881.46 and 4,051.05

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Solution

The fourth proportional to 6,438.12, 8,881.46 and 4,051.05 is: 5,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.12 : 8,881.46 = 4,051.05 : x
  2. Step 2: Convert to fraction form
    6,438.12/8,881.46 = 4,051.05/x
  3. Step 3: Cross multiply
    6,438.12x = 8,881.46 × 4,051.05
  4. Step 4: Simplify right side
    6,438.12x = 35,979,222.95
  5. Step 5: Solve for x
    x = 35,979,222.95/6,438.12
  6. Step 6: Final answer
    x = 5,588.47

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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.