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Finding the Fourth Proportional to 2,379.76, 3,570.82 and 1,798.32

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Solution

The fourth proportional to 2,379.76, 3,570.82 and 1,798.32 is: 2,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.76 : 3,570.82 = 1,798.32 : x
  2. Step 2: Convert to fraction form
    2,379.76/3,570.82 = 1,798.32/x
  3. Step 3: Cross multiply
    2,379.76x = 3,570.82 × 1,798.32
  4. Step 4: Simplify right side
    2,379.76x = 6,421,465.83
  5. Step 5: Solve for x
    x = 6,421,465.83/2,379.76
  6. Step 6: Final answer
    x = 2,698.36

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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.