Home / 1,953.56-2,924.40-1,129.52

Finding the Fourth Proportional to 1,953.56, 2,924.40 and 1,129.52

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Solution

The fourth proportional to 1,953.56, 2,924.40 and 1,129.52 is: 1,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.56 : 2,924.40 = 1,129.52 : x
  2. Step 2: Convert to fraction form
    1,953.56/2,924.40 = 1,129.52/x
  3. Step 3: Cross multiply
    1,953.56x = 2,924.40 × 1,129.52
  4. Step 4: Simplify right side
    1,953.56x = 3,303,168.29
  5. Step 5: Solve for x
    x = 3,303,168.29/1,953.56
  6. Step 6: Final answer
    x = 1,690.85

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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.