Home / 4,343.13-6,515.37-1,420.74

Finding the Fourth Proportional to 4,343.13, 6,515.37 and 1,420.74

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Solution

The fourth proportional to 4,343.13, 6,515.37 and 1,420.74 is: 2,131.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,343.13 : 6,515.37 = 1,420.74 : x
  2. Step 2: Convert to fraction form
    4,343.13/6,515.37 = 1,420.74/x
  3. Step 3: Cross multiply
    4,343.13x = 6,515.37 × 1,420.74
  4. Step 4: Simplify right side
    4,343.13x = 9,256,646.77
  5. Step 5: Solve for x
    x = 9,256,646.77/4,343.13
  6. Step 6: Final answer
    x = 2,131.33

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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.