Home / 1,986.49-2,746.65-1,740.52

Finding the Fourth Proportional to 1,986.49, 2,746.65 and 1,740.52

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Solution

The fourth proportional to 1,986.49, 2,746.65 and 1,740.52 is: 2,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.49 : 2,746.65 = 1,740.52 : x
  2. Step 2: Convert to fraction form
    1,986.49/2,746.65 = 1,740.52/x
  3. Step 3: Cross multiply
    1,986.49x = 2,746.65 × 1,740.52
  4. Step 4: Simplify right side
    1,986.49x = 4,780,599.26
  5. Step 5: Solve for x
    x = 4,780,599.26/1,986.49
  6. Step 6: Final answer
    x = 2,406.56

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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.