Home / 2,672.32-4,009.91-1,113.40

Finding the Fourth Proportional to 2,672.32, 4,009.91 and 1,113.40

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Solution

The fourth proportional to 2,672.32, 4,009.91 and 1,113.40 is: 1,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.32 : 4,009.91 = 1,113.40 : x
  2. Step 2: Convert to fraction form
    2,672.32/4,009.91 = 1,113.40/x
  3. Step 3: Cross multiply
    2,672.32x = 4,009.91 × 1,113.40
  4. Step 4: Simplify right side
    2,672.32x = 4,464,613.74
  5. Step 5: Solve for x
    x = 4,464,613.74/2,672.32
  6. Step 6: Final answer
    x = 1,670.69

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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.