Home / 1,897.24-2,842.38-1,312.28

Finding the Fourth Proportional to 1,897.24, 2,842.38 and 1,312.28

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Solution

The fourth proportional to 1,897.24, 2,842.38 and 1,312.28 is: 1,966.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.24 : 2,842.38 = 1,312.28 : x
  2. Step 2: Convert to fraction form
    1,897.24/2,842.38 = 1,312.28/x
  3. Step 3: Cross multiply
    1,897.24x = 2,842.38 × 1,312.28
  4. Step 4: Simplify right side
    1,897.24x = 3,729,998.43
  5. Step 5: Solve for x
    x = 3,729,998.43/1,897.24
  6. Step 6: Final answer
    x = 1,966.01

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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.