Home / 1,291.01-1,933.83-630.89

Finding the Fourth Proportional to 1,291.01, 1,933.83 and 630.89

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Solution

The fourth proportional to 1,291.01, 1,933.83 and 630.89 is: 945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291.01 : 1,933.83 = 630.89 : x
  2. Step 2: Convert to fraction form
    1,291.01/1,933.83 = 630.89/x
  3. Step 3: Cross multiply
    1,291.01x = 1,933.83 × 630.89
  4. Step 4: Simplify right side
    1,291.01x = 1,220,038.84
  5. Step 5: Solve for x
    x = 1,220,038.84/1,291.01
  6. Step 6: Final answer
    x = 945.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.