Home / 1,166.37-1,610.01-918.80

Finding the Fourth Proportional to 1,166.37, 1,610.01 and 918.80

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Solution

The fourth proportional to 1,166.37, 1,610.01 and 918.80 is: 1,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.37 : 1,610.01 = 918.80 : x
  2. Step 2: Convert to fraction form
    1,166.37/1,610.01 = 918.80/x
  3. Step 3: Cross multiply
    1,166.37x = 1,610.01 × 918.80
  4. Step 4: Simplify right side
    1,166.37x = 1,479,269.28
  5. Step 5: Solve for x
    x = 1,479,269.28/1,166.37
  6. Step 6: Final answer
    x = 1,268.27

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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.