Home / 6,875.26-10,312.62-1,681

Finding the Fourth Proportional to 6,875.26, 10,312.62 and 1,681

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Solution

The fourth proportional to 6,875.26, 10,312.62 and 1,681 is: 2,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.26 : 10,312.62 = 1,681 : x
  2. Step 2: Convert to fraction form
    6,875.26/10,312.62 = 1,681/x
  3. Step 3: Cross multiply
    6,875.26x = 10,312.62 × 1,681
  4. Step 4: Simplify right side
    6,875.26x = 17,335,514.22
  5. Step 5: Solve for x
    x = 17,335,514.22/6,875.26
  6. Step 6: Final answer
    x = 2,521.43

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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.