Home / 3,139.58-4,334.49-2,430.02

Finding the Fourth Proportional to 3,139.58, 4,334.49 and 2,430.02

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Solution

The fourth proportional to 3,139.58, 4,334.49 and 2,430.02 is: 3,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.58 : 4,334.49 = 2,430.02 : x
  2. Step 2: Convert to fraction form
    3,139.58/4,334.49 = 2,430.02/x
  3. Step 3: Cross multiply
    3,139.58x = 4,334.49 × 2,430.02
  4. Step 4: Simplify right side
    3,139.58x = 10,532,875.72
  5. Step 5: Solve for x
    x = 10,532,875.72/3,139.58
  6. Step 6: Final answer
    x = 3,354.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.