Home / 6,780.02-9,357.35-4,091.37

Finding the Fourth Proportional to 6,780.02, 9,357.35 and 4,091.37

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Solution

The fourth proportional to 6,780.02, 9,357.35 and 4,091.37 is: 5,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.02 : 9,357.35 = 4,091.37 : x
  2. Step 2: Convert to fraction form
    6,780.02/9,357.35 = 4,091.37/x
  3. Step 3: Cross multiply
    6,780.02x = 9,357.35 × 4,091.37
  4. Step 4: Simplify right side
    6,780.02x = 38,284,381.07
  5. Step 5: Solve for x
    x = 38,284,381.07/6,780.02
  6. Step 6: Final answer
    x = 5,646.65

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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.