Home / 4,306.20-6,461.10-1,385.40

Finding the Fourth Proportional to 4,306.20, 6,461.10 and 1,385.40

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Solution

The fourth proportional to 4,306.20, 6,461.10 and 1,385.40 is: 2,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,306.20 : 6,461.10 = 1,385.40 : x
  2. Step 2: Convert to fraction form
    4,306.20/6,461.10 = 1,385.40/x
  3. Step 3: Cross multiply
    4,306.20x = 6,461.10 × 1,385.40
  4. Step 4: Simplify right side
    4,306.20x = 8,951,207.94
  5. Step 5: Solve for x
    x = 8,951,207.94/4,306.20
  6. Step 6: Final answer
    x = 2,078.68

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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.