Home / 1,898.15-2,848.75-1,378.38

Finding the Fourth Proportional to 1,898.15, 2,848.75 and 1,378.38

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Solution

The fourth proportional to 1,898.15, 2,848.75 and 1,378.38 is: 2,068.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.15 : 2,848.75 = 1,378.38 : x
  2. Step 2: Convert to fraction form
    1,898.15/2,848.75 = 1,378.38/x
  3. Step 3: Cross multiply
    1,898.15x = 2,848.75 × 1,378.38
  4. Step 4: Simplify right side
    1,898.15x = 3,926,675.02
  5. Step 5: Solve for x
    x = 3,926,675.02/1,898.15
  6. Step 6: Final answer
    x = 2,068.68

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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.