Home / 1,925.87-2,657.70-1,086.57

Finding the Fourth Proportional to 1,925.87, 2,657.70 and 1,086.57

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Solution

The fourth proportional to 1,925.87, 2,657.70 and 1,086.57 is: 1,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.87 : 2,657.70 = 1,086.57 : x
  2. Step 2: Convert to fraction form
    1,925.87/2,657.70 = 1,086.57/x
  3. Step 3: Cross multiply
    1,925.87x = 2,657.70 × 1,086.57
  4. Step 4: Simplify right side
    1,925.87x = 2,887,771.66
  5. Step 5: Solve for x
    x = 2,887,771.66/1,925.87
  6. Step 6: Final answer
    x = 1,499.47

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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.