Home / 7,868.31-10,858.52-4,511.77

Finding the Fourth Proportional to 7,868.31, 10,858.52 and 4,511.77

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Solution

The fourth proportional to 7,868.31, 10,858.52 and 4,511.77 is: 6,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.31 : 10,858.52 = 4,511.77 : x
  2. Step 2: Convert to fraction form
    7,868.31/10,858.52 = 4,511.77/x
  3. Step 3: Cross multiply
    7,868.31x = 10,858.52 × 4,511.77
  4. Step 4: Simplify right side
    7,868.31x = 48,991,128.91
  5. Step 5: Solve for x
    x = 48,991,128.91/7,868.31
  6. Step 6: Final answer
    x = 6,226.39

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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.