Home / 1,905.03-2,857.28-606.51

Finding the Fourth Proportional to 1,905.03, 2,857.28 and 606.51

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Solution

The fourth proportional to 1,905.03, 2,857.28 and 606.51 is: 909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.03 : 2,857.28 = 606.51 : x
  2. Step 2: Convert to fraction form
    1,905.03/2,857.28 = 606.51/x
  3. Step 3: Cross multiply
    1,905.03x = 2,857.28 × 606.51
  4. Step 4: Simplify right side
    1,905.03x = 1,732,965.86
  5. Step 5: Solve for x
    x = 1,732,965.86/1,905.03
  6. Step 6: Final answer
    x = 909.68

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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.