Home / 3,513.95-5,266.80-1,953.21

Finding the Fourth Proportional to 3,513.95, 5,266.80 and 1,953.21

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Solution

The fourth proportional to 3,513.95, 5,266.80 and 1,953.21 is: 2,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.95 : 5,266.80 = 1,953.21 : x
  2. Step 2: Convert to fraction form
    3,513.95/5,266.80 = 1,953.21/x
  3. Step 3: Cross multiply
    3,513.95x = 5,266.80 × 1,953.21
  4. Step 4: Simplify right side
    3,513.95x = 10,287,166.43
  5. Step 5: Solve for x
    x = 10,287,166.43/3,513.95
  6. Step 6: Final answer
    x = 2,927.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.