Home / 1,643.17-2,266.80-1,112.24

Finding the Fourth Proportional to 1,643.17, 2,266.80 and 1,112.24

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Solution

The fourth proportional to 1,643.17, 2,266.80 and 1,112.24 is: 1,534.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.17 : 2,266.80 = 1,112.24 : x
  2. Step 2: Convert to fraction form
    1,643.17/2,266.80 = 1,112.24/x
  3. Step 3: Cross multiply
    1,643.17x = 2,266.80 × 1,112.24
  4. Step 4: Simplify right side
    1,643.17x = 2,521,225.63
  5. Step 5: Solve for x
    x = 2,521,225.63/1,643.17
  6. Step 6: Final answer
    x = 1,534.37

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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.