Home / 1,623.96-2,240.70-1,100.28

Finding the Fourth Proportional to 1,623.96, 2,240.70 and 1,100.28

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Solution

The fourth proportional to 1,623.96, 2,240.70 and 1,100.28 is: 1,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.96 : 2,240.70 = 1,100.28 : x
  2. Step 2: Convert to fraction form
    1,623.96/2,240.70 = 1,100.28/x
  3. Step 3: Cross multiply
    1,623.96x = 2,240.70 × 1,100.28
  4. Step 4: Simplify right side
    1,623.96x = 2,465,397.40
  5. Step 5: Solve for x
    x = 2,465,397.40/1,623.96
  6. Step 6: Final answer
    x = 1,518.14

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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.