Home / 4,342.89-6,515.15-1,421.36

Finding the Fourth Proportional to 4,342.89, 6,515.15 and 1,421.36

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Solution

The fourth proportional to 4,342.89, 6,515.15 and 1,421.36 is: 2,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,342.89 : 6,515.15 = 1,421.36 : x
  2. Step 2: Convert to fraction form
    4,342.89/6,515.15 = 1,421.36/x
  3. Step 3: Cross multiply
    4,342.89x = 6,515.15 × 1,421.36
  4. Step 4: Simplify right side
    4,342.89x = 9,260,333.92
  5. Step 5: Solve for x
    x = 9,260,333.92/4,342.89
  6. Step 6: Final answer
    x = 2,132.30

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1.5x scale

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.