Home / 1,623.81-2,238.53-1,157.25

Finding the Fourth Proportional to 1,623.81, 2,238.53 and 1,157.25

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Solution

The fourth proportional to 1,623.81, 2,238.53 and 1,157.25 is: 1,595.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.81 : 2,238.53 = 1,157.25 : x
  2. Step 2: Convert to fraction form
    1,623.81/2,238.53 = 1,157.25/x
  3. Step 3: Cross multiply
    1,623.81x = 2,238.53 × 1,157.25
  4. Step 4: Simplify right side
    1,623.81x = 2,590,533.06
  5. Step 5: Solve for x
    x = 2,590,533.06/1,623.81
  6. Step 6: Final answer
    x = 1,595.34

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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.