Home / 1,643.19-2,263.75-1,144.93

Finding the Fourth Proportional to 1,643.19, 2,263.75 and 1,144.93

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Solution

The fourth proportional to 1,643.19, 2,263.75 and 1,144.93 is: 1,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.19 : 2,263.75 = 1,144.93 : x
  2. Step 2: Convert to fraction form
    1,643.19/2,263.75 = 1,144.93/x
  3. Step 3: Cross multiply
    1,643.19x = 2,263.75 × 1,144.93
  4. Step 4: Simplify right side
    1,643.19x = 2,591,835.29
  5. Step 5: Solve for x
    x = 2,591,835.29/1,643.19
  6. Step 6: Final answer
    x = 1,577.32

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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.