Home / 1,954.42-2,697.20-1,070.31

Finding the Fourth Proportional to 1,954.42, 2,697.20 and 1,070.31

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Solution

The fourth proportional to 1,954.42, 2,697.20 and 1,070.31 is: 1,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.42 : 2,697.20 = 1,070.31 : x
  2. Step 2: Convert to fraction form
    1,954.42/2,697.20 = 1,070.31/x
  3. Step 3: Cross multiply
    1,954.42x = 2,697.20 × 1,070.31
  4. Step 4: Simplify right side
    1,954.42x = 2,886,840.13
  5. Step 5: Solve for x
    x = 2,886,840.13/1,954.42
  6. Step 6: Final answer
    x = 1,477.08

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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.