Home / 2,805.51-4,201.87-1,707.45

Finding the Fourth Proportional to 2,805.51, 4,201.87 and 1,707.45

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Solution

The fourth proportional to 2,805.51, 4,201.87 and 1,707.45 is: 2,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.51 : 4,201.87 = 1,707.45 : x
  2. Step 2: Convert to fraction form
    2,805.51/4,201.87 = 1,707.45/x
  3. Step 3: Cross multiply
    2,805.51x = 4,201.87 × 1,707.45
  4. Step 4: Simplify right side
    2,805.51x = 7,174,482.93
  5. Step 5: Solve for x
    x = 7,174,482.93/2,805.51
  6. Step 6: Final answer
    x = 2,557.28

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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.