Home / 1,980.24-2,966.04-1,401.36

Finding the Fourth Proportional to 1,980.24, 2,966.04 and 1,401.36

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Solution

The fourth proportional to 1,980.24, 2,966.04 and 1,401.36 is: 2,098.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.24 : 2,966.04 = 1,401.36 : x
  2. Step 2: Convert to fraction form
    1,980.24/2,966.04 = 1,401.36/x
  3. Step 3: Cross multiply
    1,980.24x = 2,966.04 × 1,401.36
  4. Step 4: Simplify right side
    1,980.24x = 4,156,489.81
  5. Step 5: Solve for x
    x = 4,156,489.81/1,980.24
  6. Step 6: Final answer
    x = 2,098.98

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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.