Home / 1,902.10-2,848.53-1,315.54

Finding the Fourth Proportional to 1,902.10, 2,848.53 and 1,315.54

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Solution

The fourth proportional to 1,902.10, 2,848.53 and 1,315.54 is: 1,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.10 : 2,848.53 = 1,315.54 : x
  2. Step 2: Convert to fraction form
    1,902.10/2,848.53 = 1,315.54/x
  3. Step 3: Cross multiply
    1,902.10x = 2,848.53 × 1,315.54
  4. Step 4: Simplify right side
    1,902.10x = 3,747,355.16
  5. Step 5: Solve for x
    x = 3,747,355.16/1,902.10
  6. Step 6: Final answer
    x = 1,970.11

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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.