Home / 1,867.76-2,582.17-1,401.20

Finding the Fourth Proportional to 1,867.76, 2,582.17 and 1,401.20

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Solution

The fourth proportional to 1,867.76, 2,582.17 and 1,401.20 is: 1,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.76 : 2,582.17 = 1,401.20 : x
  2. Step 2: Convert to fraction form
    1,867.76/2,582.17 = 1,401.20/x
  3. Step 3: Cross multiply
    1,867.76x = 2,582.17 × 1,401.20
  4. Step 4: Simplify right side
    1,867.76x = 3,618,136.60
  5. Step 5: Solve for x
    x = 3,618,136.60/1,867.76
  6. Step 6: Final answer
    x = 1,937.15

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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.