Home / 1,401.90-2,101.26-846.73

Finding the Fourth Proportional to 1,401.90, 2,101.26 and 846.73

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Solution

The fourth proportional to 1,401.90, 2,101.26 and 846.73 is: 1,269.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.90 : 2,101.26 = 846.73 : x
  2. Step 2: Convert to fraction form
    1,401.90/2,101.26 = 846.73/x
  3. Step 3: Cross multiply
    1,401.90x = 2,101.26 × 846.73
  4. Step 4: Simplify right side
    1,401.90x = 1,779,199.88
  5. Step 5: Solve for x
    x = 1,779,199.88/1,401.90
  6. Step 6: Final answer
    x = 1,269.13

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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.