Home / 2,030.12-2,801.30-1,190.67

Finding the Fourth Proportional to 2,030.12, 2,801.30 and 1,190.67

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Solution

The fourth proportional to 2,030.12, 2,801.30 and 1,190.67 is: 1,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.12 : 2,801.30 = 1,190.67 : x
  2. Step 2: Convert to fraction form
    2,030.12/2,801.30 = 1,190.67/x
  3. Step 3: Cross multiply
    2,030.12x = 2,801.30 × 1,190.67
  4. Step 4: Simplify right side
    2,030.12x = 3,335,423.87
  5. Step 5: Solve for x
    x = 3,335,423.87/2,030.12
  6. Step 6: Final answer
    x = 1,642.97

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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.