Home / 1,225.86-1,829.01-1,197.81

Finding the Fourth Proportional to 1,225.86, 1,829.01 and 1,197.81

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Solution

The fourth proportional to 1,225.86, 1,829.01 and 1,197.81 is: 1,787.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.86 : 1,829.01 = 1,197.81 : x
  2. Step 2: Convert to fraction form
    1,225.86/1,829.01 = 1,197.81/x
  3. Step 3: Cross multiply
    1,225.86x = 1,829.01 × 1,197.81
  4. Step 4: Simplify right side
    1,225.86x = 2,190,806.47
  5. Step 5: Solve for x
    x = 2,190,806.47/1,225.86
  6. Step 6: Final answer
    x = 1,787.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.