Home / 1,407.41-2,111.43-433.60

Finding the Fourth Proportional to 1,407.41, 2,111.43 and 433.60

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Solution

The fourth proportional to 1,407.41, 2,111.43 and 433.60 is: 650.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.41 : 2,111.43 = 433.60 : x
  2. Step 2: Convert to fraction form
    1,407.41/2,111.43 = 433.60/x
  3. Step 3: Cross multiply
    1,407.41x = 2,111.43 × 433.60
  4. Step 4: Simplify right side
    1,407.41x = 915,516.05
  5. Step 5: Solve for x
    x = 915,516.05/1,407.41
  6. Step 6: Final answer
    x = 650.50

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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.