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Finding the Fourth Proportional to 1,977.51, 2,966.31 and 937.26

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Solution

The fourth proportional to 1,977.51, 2,966.31 and 937.26 is: 1,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.51 : 2,966.31 = 937.26 : x
  2. Step 2: Convert to fraction form
    1,977.51/2,966.31 = 937.26/x
  3. Step 3: Cross multiply
    1,977.51x = 2,966.31 × 937.26
  4. Step 4: Simplify right side
    1,977.51x = 2,780,203.71
  5. Step 5: Solve for x
    x = 2,780,203.71/1,977.51
  6. Step 6: Final answer
    x = 1,405.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.