Home / 1,889.55-2,607.53-1,190.25

Finding the Fourth Proportional to 1,889.55, 2,607.53 and 1,190.25

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Solution

The fourth proportional to 1,889.55, 2,607.53 and 1,190.25 is: 1,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.55 : 2,607.53 = 1,190.25 : x
  2. Step 2: Convert to fraction form
    1,889.55/2,607.53 = 1,190.25/x
  3. Step 3: Cross multiply
    1,889.55x = 2,607.53 × 1,190.25
  4. Step 4: Simplify right side
    1,889.55x = 3,103,606.63
  5. Step 5: Solve for x
    x = 3,103,606.63/1,889.55
  6. Step 6: Final answer
    x = 1,642.51

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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.