Home / 1,901.48-2,851.76-1,285.01

Finding the Fourth Proportional to 1,901.48, 2,851.76 and 1,285.01

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Solution

The fourth proportional to 1,901.48, 2,851.76 and 1,285.01 is: 1,927.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.48 : 2,851.76 = 1,285.01 : x
  2. Step 2: Convert to fraction form
    1,901.48/2,851.76 = 1,285.01/x
  3. Step 3: Cross multiply
    1,901.48x = 2,851.76 × 1,285.01
  4. Step 4: Simplify right side
    1,901.48x = 3,664,548.58
  5. Step 5: Solve for x
    x = 3,664,548.58/1,901.48
  6. Step 6: Final answer
    x = 1,927.21

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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.