Home / 1,977.46-2,966.18-1,390.04

Finding the Fourth Proportional to 1,977.46, 2,966.18 and 1,390.04

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Solution

The fourth proportional to 1,977.46, 2,966.18 and 1,390.04 is: 2,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.46 : 2,966.18 = 1,390.04 : x
  2. Step 2: Convert to fraction form
    1,977.46/2,966.18 = 1,390.04/x
  3. Step 3: Cross multiply
    1,977.46x = 2,966.18 × 1,390.04
  4. Step 4: Simplify right side
    1,977.46x = 4,123,108.85
  5. Step 5: Solve for x
    x = 4,123,108.85/1,977.46
  6. Step 6: Final answer
    x = 2,085.05

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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.