Home / 2,000.40-2,758.51-1,721.55

Finding the Fourth Proportional to 2,000.40, 2,758.51 and 1,721.55

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Solution

The fourth proportional to 2,000.40, 2,758.51 and 1,721.55 is: 2,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.40 : 2,758.51 = 1,721.55 : x
  2. Step 2: Convert to fraction form
    2,000.40/2,758.51 = 1,721.55/x
  3. Step 3: Cross multiply
    2,000.40x = 2,758.51 × 1,721.55
  4. Step 4: Simplify right side
    2,000.40x = 4,748,915.70
  5. Step 5: Solve for x
    x = 4,748,915.70/2,000.40
  6. Step 6: Final answer
    x = 2,373.99

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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.