Home / 3,528.67-4,868.57-2,780.30

Finding the Fourth Proportional to 3,528.67, 4,868.57 and 2,780.30

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Solution

The fourth proportional to 3,528.67, 4,868.57 and 2,780.30 is: 3,836.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.67 : 4,868.57 = 2,780.30 : x
  2. Step 2: Convert to fraction form
    3,528.67/4,868.57 = 2,780.30/x
  3. Step 3: Cross multiply
    3,528.67x = 4,868.57 × 2,780.30
  4. Step 4: Simplify right side
    3,528.67x = 13,536,085.17
  5. Step 5: Solve for x
    x = 13,536,085.17/3,528.67
  6. Step 6: Final answer
    x = 3,836.03

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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.