Home / 5,162.64-7,124.45-2,804.78

Finding the Fourth Proportional to 5,162.64, 7,124.45 and 2,804.78

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Solution

The fourth proportional to 5,162.64, 7,124.45 and 2,804.78 is: 3,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.64 : 7,124.45 = 2,804.78 : x
  2. Step 2: Convert to fraction form
    5,162.64/7,124.45 = 2,804.78/x
  3. Step 3: Cross multiply
    5,162.64x = 7,124.45 × 2,804.78
  4. Step 4: Simplify right side
    5,162.64x = 19,982,514.87
  5. Step 5: Solve for x
    x = 19,982,514.87/5,162.64
  6. Step 6: Final answer
    x = 3,870.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.