Home / 1,931.91-2,666.42-1,302.45

Finding the Fourth Proportional to 1,931.91, 2,666.42 and 1,302.45

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Solution

The fourth proportional to 1,931.91, 2,666.42 and 1,302.45 is: 1,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.91 : 2,666.42 = 1,302.45 : x
  2. Step 2: Convert to fraction form
    1,931.91/2,666.42 = 1,302.45/x
  3. Step 3: Cross multiply
    1,931.91x = 2,666.42 × 1,302.45
  4. Step 4: Simplify right side
    1,931.91x = 3,472,872.22
  5. Step 5: Solve for x
    x = 3,472,872.22/1,931.91
  6. Step 6: Final answer
    x = 1,797.64

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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.