Home / 1,898.64-2,620.45-1,113.14

Finding the Fourth Proportional to 1,898.64, 2,620.45 and 1,113.14

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Solution

The fourth proportional to 1,898.64, 2,620.45 and 1,113.14 is: 1,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.64 : 2,620.45 = 1,113.14 : x
  2. Step 2: Convert to fraction form
    1,898.64/2,620.45 = 1,113.14/x
  3. Step 3: Cross multiply
    1,898.64x = 2,620.45 × 1,113.14
  4. Step 4: Simplify right side
    1,898.64x = 2,916,935.66
  5. Step 5: Solve for x
    x = 2,916,935.66/1,898.64
  6. Step 6: Final answer
    x = 1,536.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.