Home / 1,777.51-2,452.98-1,189.18

Finding the Fourth Proportional to 1,777.51, 2,452.98 and 1,189.18

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Solution

The fourth proportional to 1,777.51, 2,452.98 and 1,189.18 is: 1,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.51 : 2,452.98 = 1,189.18 : x
  2. Step 2: Convert to fraction form
    1,777.51/2,452.98 = 1,189.18/x
  3. Step 3: Cross multiply
    1,777.51x = 2,452.98 × 1,189.18
  4. Step 4: Simplify right side
    1,777.51x = 2,917,034.76
  5. Step 5: Solve for x
    x = 2,917,034.76/1,777.51
  6. Step 6: Final answer
    x = 1,641.08

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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.