Home / 1,586.48-2,190.80-1,192.82

Finding the Fourth Proportional to 1,586.48, 2,190.80 and 1,192.82

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Solution

The fourth proportional to 1,586.48, 2,190.80 and 1,192.82 is: 1,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.48 : 2,190.80 = 1,192.82 : x
  2. Step 2: Convert to fraction form
    1,586.48/2,190.80 = 1,192.82/x
  3. Step 3: Cross multiply
    1,586.48x = 2,190.80 × 1,192.82
  4. Step 4: Simplify right side
    1,586.48x = 2,613,230.06
  5. Step 5: Solve for x
    x = 2,613,230.06/1,586.48
  6. Step 6: Final answer
    x = 1,647.19

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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.