Home / 4,287.15-6,430.29-2,909.34

Finding the Fourth Proportional to 4,287.15, 6,430.29 and 2,909.34

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Solution

The fourth proportional to 4,287.15, 6,430.29 and 2,909.34 is: 4,363.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.15 : 6,430.29 = 2,909.34 : x
  2. Step 2: Convert to fraction form
    4,287.15/6,430.29 = 2,909.34/x
  3. Step 3: Cross multiply
    4,287.15x = 6,430.29 × 2,909.34
  4. Step 4: Simplify right side
    4,287.15x = 18,707,899.91
  5. Step 5: Solve for x
    x = 18,707,899.91/4,287.15
  6. Step 6: Final answer
    x = 4,363.71

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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.