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Finding the Fourth Proportional to 1,973.80, 2,947.13 and 1,740.86

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Solution

The fourth proportional to 1,973.80, 2,947.13 and 1,740.86 is: 2,599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.80 : 2,947.13 = 1,740.86 : x
  2. Step 2: Convert to fraction form
    1,973.80/2,947.13 = 1,740.86/x
  3. Step 3: Cross multiply
    1,973.80x = 2,947.13 × 1,740.86
  4. Step 4: Simplify right side
    1,973.80x = 5,130,540.73
  5. Step 5: Solve for x
    x = 5,130,540.73/1,973.80
  6. Step 6: Final answer
    x = 2,599.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.