Home / 1,685.76-2,528.48-1,141.44

Finding the Fourth Proportional to 1,685.76, 2,528.48 and 1,141.44

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Solution

The fourth proportional to 1,685.76, 2,528.48 and 1,141.44 is: 1,712.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.76 : 2,528.48 = 1,141.44 : x
  2. Step 2: Convert to fraction form
    1,685.76/2,528.48 = 1,141.44/x
  3. Step 3: Cross multiply
    1,685.76x = 2,528.48 × 1,141.44
  4. Step 4: Simplify right side
    1,685.76x = 2,886,108.21
  5. Step 5: Solve for x
    x = 2,886,108.21/1,685.76
  6. Step 6: Final answer
    x = 1,712.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.