Home / 1,977.98-2,969.37-924.80

Finding the Fourth Proportional to 1,977.98, 2,969.37 and 924.80

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Solution

The fourth proportional to 1,977.98, 2,969.37 and 924.80 is: 1,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.98 : 2,969.37 = 924.80 : x
  2. Step 2: Convert to fraction form
    1,977.98/2,969.37 = 924.80/x
  3. Step 3: Cross multiply
    1,977.98x = 2,969.37 × 924.80
  4. Step 4: Simplify right side
    1,977.98x = 2,746,058.53
  5. Step 5: Solve for x
    x = 2,746,058.53/1,977.98
  6. Step 6: Final answer
    x = 1,388.32

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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.