Home / 1,931.70-2,890.62-1,672.59

Finding the Fourth Proportional to 1,931.70, 2,890.62 and 1,672.59

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Solution

The fourth proportional to 1,931.70, 2,890.62 and 1,672.59 is: 2,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.70 : 2,890.62 = 1,672.59 : x
  2. Step 2: Convert to fraction form
    1,931.70/2,890.62 = 1,672.59/x
  3. Step 3: Cross multiply
    1,931.70x = 2,890.62 × 1,672.59
  4. Step 4: Simplify right side
    1,931.70x = 4,834,822.11
  5. Step 5: Solve for x
    x = 4,834,822.11/1,931.70
  6. Step 6: Final answer
    x = 2,502.88

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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.