Home / 2,780.09-4,146.69-2,364.56

Finding the Fourth Proportional to 2,780.09, 4,146.69 and 2,364.56

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Solution

The fourth proportional to 2,780.09, 4,146.69 and 2,364.56 is: 3,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.09 : 4,146.69 = 2,364.56 : x
  2. Step 2: Convert to fraction form
    2,780.09/4,146.69 = 2,364.56/x
  3. Step 3: Cross multiply
    2,780.09x = 4,146.69 × 2,364.56
  4. Step 4: Simplify right side
    2,780.09x = 9,805,100.99
  5. Step 5: Solve for x
    x = 9,805,100.99/2,780.09
  6. Step 6: Final answer
    x = 3,526.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.