Home / 1,888.48-2,606.52-1,190.80

Finding the Fourth Proportional to 1,888.48, 2,606.52 and 1,190.80

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Solution

The fourth proportional to 1,888.48, 2,606.52 and 1,190.80 is: 1,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.48 : 2,606.52 = 1,190.80 : x
  2. Step 2: Convert to fraction form
    1,888.48/2,606.52 = 1,190.80/x
  3. Step 3: Cross multiply
    1,888.48x = 2,606.52 × 1,190.80
  4. Step 4: Simplify right side
    1,888.48x = 3,103,844.02
  5. Step 5: Solve for x
    x = 3,103,844.02/1,888.48
  6. Step 6: Final answer
    x = 1,643.57

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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.