Home / 4,309.38-6,465.33-1,387.62

Finding the Fourth Proportional to 4,309.38, 6,465.33 and 1,387.62

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Solution

The fourth proportional to 4,309.38, 6,465.33 and 1,387.62 is: 2,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.38 : 6,465.33 = 1,387.62 : x
  2. Step 2: Convert to fraction form
    4,309.38/6,465.33 = 1,387.62/x
  3. Step 3: Cross multiply
    4,309.38x = 6,465.33 × 1,387.62
  4. Step 4: Simplify right side
    4,309.38x = 8,971,421.21
  5. Step 5: Solve for x
    x = 8,971,421.21/4,309.38
  6. Step 6: Final answer
    x = 2,081.84

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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.