Home / 4,343.39-6,515.90-1,421.86

Finding the Fourth Proportional to 4,343.39, 6,515.90 and 1,421.86

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Solution

The fourth proportional to 4,343.39, 6,515.90 and 1,421.86 is: 2,133.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,343.39 : 6,515.90 = 1,421.86 : x
  2. Step 2: Convert to fraction form
    4,343.39/6,515.90 = 1,421.86/x
  3. Step 3: Cross multiply
    4,343.39x = 6,515.90 × 1,421.86
  4. Step 4: Simplify right side
    4,343.39x = 9,264,697.57
  5. Step 5: Solve for x
    x = 9,264,697.57/4,343.39
  6. Step 6: Final answer
    x = 2,133.06

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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.