Home / 1,681.76-2,519.40-1,373.96

Finding the Fourth Proportional to 1,681.76, 2,519.40 and 1,373.96

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Solution

The fourth proportional to 1,681.76, 2,519.40 and 1,373.96 is: 2,058.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.76 : 2,519.40 = 1,373.96 : x
  2. Step 2: Convert to fraction form
    1,681.76/2,519.40 = 1,373.96/x
  3. Step 3: Cross multiply
    1,681.76x = 2,519.40 × 1,373.96
  4. Step 4: Simplify right side
    1,681.76x = 3,461,554.82
  5. Step 5: Solve for x
    x = 3,461,554.82/1,681.76
  6. Step 6: Final answer
    x = 2,058.29

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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.