Home / 2,124.44-2,931.76-1,285.14

Finding the Fourth Proportional to 2,124.44, 2,931.76 and 1,285.14

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Solution

The fourth proportional to 2,124.44, 2,931.76 and 1,285.14 is: 1,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.44 : 2,931.76 = 1,285.14 : x
  2. Step 2: Convert to fraction form
    2,124.44/2,931.76 = 1,285.14/x
  3. Step 3: Cross multiply
    2,124.44x = 2,931.76 × 1,285.14
  4. Step 4: Simplify right side
    2,124.44x = 3,767,722.05
  5. Step 5: Solve for x
    x = 3,767,722.05/2,124.44
  6. Step 6: Final answer
    x = 1,773.51

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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.