Home / 1,900.12-2,622.10-1,114.28

Finding the Fourth Proportional to 1,900.12, 2,622.10 and 1,114.28

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Solution

The fourth proportional to 1,900.12, 2,622.10 and 1,114.28 is: 1,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.12 : 2,622.10 = 1,114.28 : x
  2. Step 2: Convert to fraction form
    1,900.12/2,622.10 = 1,114.28/x
  3. Step 3: Cross multiply
    1,900.12x = 2,622.10 × 1,114.28
  4. Step 4: Simplify right side
    1,900.12x = 2,921,753.59
  5. Step 5: Solve for x
    x = 2,921,753.59/1,900.12
  6. Step 6: Final answer
    x = 1,537.67

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1.5x scale

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.