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Finding the Fourth Proportional to 4,698.79, 6,483.86 and 2,809.99

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Solution

The fourth proportional to 4,698.79, 6,483.86 and 2,809.99 is: 3,877.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.79 : 6,483.86 = 2,809.99 : x
  2. Step 2: Convert to fraction form
    4,698.79/6,483.86 = 2,809.99/x
  3. Step 3: Cross multiply
    4,698.79x = 6,483.86 × 2,809.99
  4. Step 4: Simplify right side
    4,698.79x = 18,219,581.76
  5. Step 5: Solve for x
    x = 18,219,581.76/4,698.79
  6. Step 6: Final answer
    x = 3,877.51

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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.