Home / 1,577.96-2,178.48-1,262.18

Finding the Fourth Proportional to 1,577.96, 2,178.48 and 1,262.18

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Solution

The fourth proportional to 1,577.96, 2,178.48 and 1,262.18 is: 1,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.96 : 2,178.48 = 1,262.18 : x
  2. Step 2: Convert to fraction form
    1,577.96/2,178.48 = 1,262.18/x
  3. Step 3: Cross multiply
    1,577.96x = 2,178.48 × 1,262.18
  4. Step 4: Simplify right side
    1,577.96x = 2,749,633.89
  5. Step 5: Solve for x
    x = 2,749,633.89/1,577.96
  6. Step 6: Final answer
    x = 1,742.52

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1.5x scale

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.