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Finding the Fourth Proportional to 2,341.36, 3,511.08 and 879.76

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Solution

The fourth proportional to 2,341.36, 3,511.08 and 879.76 is: 1,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.36 : 3,511.08 = 879.76 : x
  2. Step 2: Convert to fraction form
    2,341.36/3,511.08 = 879.76/x
  3. Step 3: Cross multiply
    2,341.36x = 3,511.08 × 879.76
  4. Step 4: Simplify right side
    2,341.36x = 3,088,907.74
  5. Step 5: Solve for x
    x = 3,088,907.74/2,341.36
  6. Step 6: Final answer
    x = 1,319.28

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1.5x scale

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.