Home / 1,995.51-2,753.75-1,156.25

Finding the Fourth Proportional to 1,995.51, 2,753.75 and 1,156.25

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Solution

The fourth proportional to 1,995.51, 2,753.75 and 1,156.25 is: 1,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.51 : 2,753.75 = 1,156.25 : x
  2. Step 2: Convert to fraction form
    1,995.51/2,753.75 = 1,156.25/x
  3. Step 3: Cross multiply
    1,995.51x = 2,753.75 × 1,156.25
  4. Step 4: Simplify right side
    1,995.51x = 3,184,023.44
  5. Step 5: Solve for x
    x = 3,184,023.44/1,995.51
  6. Step 6: Final answer
    x = 1,595.59

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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.