Home / 1,541.40-2,307.30-1,212.12

Finding the Fourth Proportional to 1,541.40, 2,307.30 and 1,212.12

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Solution

The fourth proportional to 1,541.40, 2,307.30 and 1,212.12 is: 1,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.40 : 2,307.30 = 1,212.12 : x
  2. Step 2: Convert to fraction form
    1,541.40/2,307.30 = 1,212.12/x
  3. Step 3: Cross multiply
    1,541.40x = 2,307.30 × 1,212.12
  4. Step 4: Simplify right side
    1,541.40x = 2,796,724.48
  5. Step 5: Solve for x
    x = 2,796,724.48/1,541.40
  6. Step 6: Final answer
    x = 1,814.41

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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.