Home / 4,098.58-6,145.68-1,905.40

Finding the Fourth Proportional to 4,098.58, 6,145.68 and 1,905.40

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Solution

The fourth proportional to 4,098.58, 6,145.68 and 1,905.40 is: 2,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,098.58 : 6,145.68 = 1,905.40 : x
  2. Step 2: Convert to fraction form
    4,098.58/6,145.68 = 1,905.40/x
  3. Step 3: Cross multiply
    4,098.58x = 6,145.68 × 1,905.40
  4. Step 4: Simplify right side
    4,098.58x = 11,709,978.67
  5. Step 5: Solve for x
    x = 11,709,978.67/4,098.58
  6. Step 6: Final answer
    x = 2,857.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.