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Finding the Fourth Proportional to 4,980.69, 6,875.69 and 2,884.41

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Solution

The fourth proportional to 4,980.69, 6,875.69 and 2,884.41 is: 3,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.69 : 6,875.69 = 2,884.41 : x
  2. Step 2: Convert to fraction form
    4,980.69/6,875.69 = 2,884.41/x
  3. Step 3: Cross multiply
    4,980.69x = 6,875.69 × 2,884.41
  4. Step 4: Simplify right side
    4,980.69x = 19,832,294.57
  5. Step 5: Solve for x
    x = 19,832,294.57/4,980.69
  6. Step 6: Final answer
    x = 3,981.84

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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.