Home / 1,956.89-2,700.44-1,117.87

Finding the Fourth Proportional to 1,956.89, 2,700.44 and 1,117.87

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Solution

The fourth proportional to 1,956.89, 2,700.44 and 1,117.87 is: 1,542.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.89 : 2,700.44 = 1,117.87 : x
  2. Step 2: Convert to fraction form
    1,956.89/2,700.44 = 1,117.87/x
  3. Step 3: Cross multiply
    1,956.89x = 2,700.44 × 1,117.87
  4. Step 4: Simplify right side
    1,956.89x = 3,018,732.71
  5. Step 5: Solve for x
    x = 3,018,732.71/1,956.89
  6. Step 6: Final answer
    x = 1,542.62

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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.