Home / 1,557.11-2,336.43-971.96

Finding the Fourth Proportional to 1,557.11, 2,336.43 and 971.96

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Solution

The fourth proportional to 1,557.11, 2,336.43 and 971.96 is: 1,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.11 : 2,336.43 = 971.96 : x
  2. Step 2: Convert to fraction form
    1,557.11/2,336.43 = 971.96/x
  3. Step 3: Cross multiply
    1,557.11x = 2,336.43 × 971.96
  4. Step 4: Simplify right side
    1,557.11x = 2,270,904.82
  5. Step 5: Solve for x
    x = 2,270,904.82/1,557.11
  6. Step 6: Final answer
    x = 1,458.41

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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.