Home / 1,430.52-2,140.08-1,198.05

Finding the Fourth Proportional to 1,430.52, 2,140.08 and 1,198.05

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Solution

The fourth proportional to 1,430.52, 2,140.08 and 1,198.05 is: 1,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.52 : 2,140.08 = 1,198.05 : x
  2. Step 2: Convert to fraction form
    1,430.52/2,140.08 = 1,198.05/x
  3. Step 3: Cross multiply
    1,430.52x = 2,140.08 × 1,198.05
  4. Step 4: Simplify right side
    1,430.52x = 2,563,922.84
  5. Step 5: Solve for x
    x = 2,563,922.84/1,430.52
  6. Step 6: Final answer
    x = 1,792.30

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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.