Home / 1,948.07-2,688.65-1,162.58

Finding the Fourth Proportional to 1,948.07, 2,688.65 and 1,162.58

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Solution

The fourth proportional to 1,948.07, 2,688.65 and 1,162.58 is: 1,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.07 : 2,688.65 = 1,162.58 : x
  2. Step 2: Convert to fraction form
    1,948.07/2,688.65 = 1,162.58/x
  3. Step 3: Cross multiply
    1,948.07x = 2,688.65 × 1,162.58
  4. Step 4: Simplify right side
    1,948.07x = 3,125,751.46
  5. Step 5: Solve for x
    x = 3,125,751.46/1,948.07
  6. Step 6: Final answer
    x = 1,604.54

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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.