Home / 1,750.56-2,415.85-1,121.62

Finding the Fourth Proportional to 1,750.56, 2,415.85 and 1,121.62

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Solution

The fourth proportional to 1,750.56, 2,415.85 and 1,121.62 is: 1,547.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.56 : 2,415.85 = 1,121.62 : x
  2. Step 2: Convert to fraction form
    1,750.56/2,415.85 = 1,121.62/x
  3. Step 3: Cross multiply
    1,750.56x = 2,415.85 × 1,121.62
  4. Step 4: Simplify right side
    1,750.56x = 2,709,665.68
  5. Step 5: Solve for x
    x = 2,709,665.68/1,750.56
  6. Step 6: Final answer
    x = 1,547.89

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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.