Home / 3,430.76-5,146.95-1,209.26

Finding the Fourth Proportional to 3,430.76, 5,146.95 and 1,209.26

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Solution

The fourth proportional to 3,430.76, 5,146.95 and 1,209.26 is: 1,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.76 : 5,146.95 = 1,209.26 : x
  2. Step 2: Convert to fraction form
    3,430.76/5,146.95 = 1,209.26/x
  3. Step 3: Cross multiply
    3,430.76x = 5,146.95 × 1,209.26
  4. Step 4: Simplify right side
    3,430.76x = 6,224,000.76
  5. Step 5: Solve for x
    x = 6,224,000.76/3,430.76
  6. Step 6: Final answer
    x = 1,814.18

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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.