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Finding the Fourth Proportional to 3,124.68, 4,312.78 and 1,799.14

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Solution

The fourth proportional to 3,124.68, 4,312.78 and 1,799.14 is: 2,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.68 : 4,312.78 = 1,799.14 : x
  2. Step 2: Convert to fraction form
    3,124.68/4,312.78 = 1,799.14/x
  3. Step 3: Cross multiply
    3,124.68x = 4,312.78 × 1,799.14
  4. Step 4: Simplify right side
    3,124.68x = 7,759,295.01
  5. Step 5: Solve for x
    x = 7,759,295.01/3,124.68
  6. Step 6: Final answer
    x = 2,483.23

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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.