Home / 1,339.32-2,008.98-1,235.64

Finding the Fourth Proportional to 1,339.32, 2,008.98 and 1,235.64

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Solution

The fourth proportional to 1,339.32, 2,008.98 and 1,235.64 is: 1,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.32 : 2,008.98 = 1,235.64 : x
  2. Step 2: Convert to fraction form
    1,339.32/2,008.98 = 1,235.64/x
  3. Step 3: Cross multiply
    1,339.32x = 2,008.98 × 1,235.64
  4. Step 4: Simplify right side
    1,339.32x = 2,482,376.05
  5. Step 5: Solve for x
    x = 2,482,376.05/1,339.32
  6. Step 6: Final answer
    x = 1,853.46

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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.