Home / 1,777.34-2,453.16-1,211.11

Finding the Fourth Proportional to 1,777.34, 2,453.16 and 1,211.11

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Solution

The fourth proportional to 1,777.34, 2,453.16 and 1,211.11 is: 1,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.34 : 2,453.16 = 1,211.11 : x
  2. Step 2: Convert to fraction form
    1,777.34/2,453.16 = 1,211.11/x
  3. Step 3: Cross multiply
    1,777.34x = 2,453.16 × 1,211.11
  4. Step 4: Simplify right side
    1,777.34x = 2,971,034.34
  5. Step 5: Solve for x
    x = 2,971,034.34/1,777.34
  6. Step 6: Final answer
    x = 1,671.62

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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.