Home / 1,430.06-2,143.50-609.02

Finding the Fourth Proportional to 1,430.06, 2,143.50 and 609.02

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Solution

The fourth proportional to 1,430.06, 2,143.50 and 609.02 is: 912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.06 : 2,143.50 = 609.02 : x
  2. Step 2: Convert to fraction form
    1,430.06/2,143.50 = 609.02/x
  3. Step 3: Cross multiply
    1,430.06x = 2,143.50 × 609.02
  4. Step 4: Simplify right side
    1,430.06x = 1,305,434.37
  5. Step 5: Solve for x
    x = 1,305,434.37/1,430.06
  6. Step 6: Final answer
    x = 912.85

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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.