Home / 1,656.96-2,287.85-1,357.76

Finding the Fourth Proportional to 1,656.96, 2,287.85 and 1,357.76

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Solution

The fourth proportional to 1,656.96, 2,287.85 and 1,357.76 is: 1,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.96 : 2,287.85 = 1,357.76 : x
  2. Step 2: Convert to fraction form
    1,656.96/2,287.85 = 1,357.76/x
  3. Step 3: Cross multiply
    1,656.96x = 2,287.85 × 1,357.76
  4. Step 4: Simplify right side
    1,656.96x = 3,106,350.15
  5. Step 5: Solve for x
    x = 3,106,350.15/1,656.96
  6. Step 6: Final answer
    x = 1,874.73

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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.