Home / 1,907.03-2,632.02-1,121.51

Finding the Fourth Proportional to 1,907.03, 2,632.02 and 1,121.51

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Solution

The fourth proportional to 1,907.03, 2,632.02 and 1,121.51 is: 1,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.03 : 2,632.02 = 1,121.51 : x
  2. Step 2: Convert to fraction form
    1,907.03/2,632.02 = 1,121.51/x
  3. Step 3: Cross multiply
    1,907.03x = 2,632.02 × 1,121.51
  4. Step 4: Simplify right side
    1,907.03x = 2,951,836.75
  5. Step 5: Solve for x
    x = 2,951,836.75/1,907.03
  6. Step 6: Final answer
    x = 1,547.87

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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.