Home / 1,645.88-2,270.06-1,545.08

Finding the Fourth Proportional to 1,645.88, 2,270.06 and 1,545.08

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Solution

The fourth proportional to 1,645.88, 2,270.06 and 1,545.08 is: 2,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.88 : 2,270.06 = 1,545.08 : x
  2. Step 2: Convert to fraction form
    1,645.88/2,270.06 = 1,545.08/x
  3. Step 3: Cross multiply
    1,645.88x = 2,270.06 × 1,545.08
  4. Step 4: Simplify right side
    1,645.88x = 3,507,424.30
  5. Step 5: Solve for x
    x = 3,507,424.30/1,645.88
  6. Step 6: Final answer
    x = 2,131.03

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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.