Home / 4,815.76-6,645.08-2,927.74

Finding the Fourth Proportional to 4,815.76, 6,645.08 and 2,927.74

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Solution

The fourth proportional to 4,815.76, 6,645.08 and 2,927.74 is: 4,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.76 : 6,645.08 = 2,927.74 : x
  2. Step 2: Convert to fraction form
    4,815.76/6,645.08 = 2,927.74/x
  3. Step 3: Cross multiply
    4,815.76x = 6,645.08 × 2,927.74
  4. Step 4: Simplify right side
    4,815.76x = 19,455,018.66
  5. Step 5: Solve for x
    x = 19,455,018.66/4,815.76
  6. Step 6: Final answer
    x = 4,039.87

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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.