Home / 1,403.39-2,105.08-1,095.50

Finding the Fourth Proportional to 1,403.39, 2,105.08 and 1,095.50

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Solution

The fourth proportional to 1,403.39, 2,105.08 and 1,095.50 is: 1,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.39 : 2,105.08 = 1,095.50 : x
  2. Step 2: Convert to fraction form
    1,403.39/2,105.08 = 1,095.50/x
  3. Step 3: Cross multiply
    1,403.39x = 2,105.08 × 1,095.50
  4. Step 4: Simplify right side
    1,403.39x = 2,306,110.20
  5. Step 5: Solve for x
    x = 2,306,110.20/1,403.39
  6. Step 6: Final answer
    x = 1,643.24

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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.