Home / 1,590.77-2,195.22-927.75

Finding the Fourth Proportional to 1,590.77, 2,195.22 and 927.75

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Solution

The fourth proportional to 1,590.77, 2,195.22 and 927.75 is: 1,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.77 : 2,195.22 = 927.75 : x
  2. Step 2: Convert to fraction form
    1,590.77/2,195.22 = 927.75/x
  3. Step 3: Cross multiply
    1,590.77x = 2,195.22 × 927.75
  4. Step 4: Simplify right side
    1,590.77x = 2,036,615.36
  5. Step 5: Solve for x
    x = 2,036,615.36/1,590.77
  6. Step 6: Final answer
    x = 1,280.27

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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.