Home / 2,125.13-3,189.95-1,030.20

Finding the Fourth Proportional to 2,125.13, 3,189.95 and 1,030.20

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Solution

The fourth proportional to 2,125.13, 3,189.95 and 1,030.20 is: 1,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.13 : 3,189.95 = 1,030.20 : x
  2. Step 2: Convert to fraction form
    2,125.13/3,189.95 = 1,030.20/x
  3. Step 3: Cross multiply
    2,125.13x = 3,189.95 × 1,030.20
  4. Step 4: Simplify right side
    2,125.13x = 3,286,281.34
  5. Step 5: Solve for x
    x = 3,286,281.34/2,125.13
  6. Step 6: Final answer
    x = 1,546.39

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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.