Home / 6,428.10-8,858.52-4,435.02

Finding the Fourth Proportional to 6,428.10, 8,858.52 and 4,435.02

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Solution

The fourth proportional to 6,428.10, 8,858.52 and 4,435.02 is: 6,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.10 : 8,858.52 = 4,435.02 : x
  2. Step 2: Convert to fraction form
    6,428.10/8,858.52 = 4,435.02/x
  3. Step 3: Cross multiply
    6,428.10x = 8,858.52 × 4,435.02
  4. Step 4: Simplify right side
    6,428.10x = 39,287,713.37
  5. Step 5: Solve for x
    x = 39,287,713.37/6,428.10
  6. Step 6: Final answer
    x = 6,111.87

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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.