Home / 2,877.09-3,968.08-1,698.13

Finding the Fourth Proportional to 2,877.09, 3,968.08 and 1,698.13

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Solution

The fourth proportional to 2,877.09, 3,968.08 and 1,698.13 is: 2,342.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.09 : 3,968.08 = 1,698.13 : x
  2. Step 2: Convert to fraction form
    2,877.09/3,968.08 = 1,698.13/x
  3. Step 3: Cross multiply
    2,877.09x = 3,968.08 × 1,698.13
  4. Step 4: Simplify right side
    2,877.09x = 6,738,315.69
  5. Step 5: Solve for x
    x = 6,738,315.69/2,877.09
  6. Step 6: Final answer
    x = 2,342.06

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1.5x scale

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.