Home / 1,501.11-2,072.48-1,029.80

Finding the Fourth Proportional to 1,501.11, 2,072.48 and 1,029.80

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Solution

The fourth proportional to 1,501.11, 2,072.48 and 1,029.80 is: 1,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.11 : 2,072.48 = 1,029.80 : x
  2. Step 2: Convert to fraction form
    1,501.11/2,072.48 = 1,029.80/x
  3. Step 3: Cross multiply
    1,501.11x = 2,072.48 × 1,029.80
  4. Step 4: Simplify right side
    1,501.11x = 2,134,232.12
  5. Step 5: Solve for x
    x = 2,134,232.12/1,501.11
  6. Step 6: Final answer
    x = 1,421.77

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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.