Home / 1,954.80-2,697.50-1,070.55

Finding the Fourth Proportional to 1,954.80, 2,697.50 and 1,070.55

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Solution

The fourth proportional to 1,954.80, 2,697.50 and 1,070.55 is: 1,477.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.80 : 2,697.50 = 1,070.55 : x
  2. Step 2: Convert to fraction form
    1,954.80/2,697.50 = 1,070.55/x
  3. Step 3: Cross multiply
    1,954.80x = 2,697.50 × 1,070.55
  4. Step 4: Simplify right side
    1,954.80x = 2,887,811.30
  5. Step 5: Solve for x
    x = 2,887,811.30/1,954.80
  6. Step 6: Final answer
    x = 1,477.29

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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.