Home / 4,304.72-6,457.20-1,385.20

Finding the Fourth Proportional to 4,304.72, 6,457.20 and 1,385.20

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Solution

The fourth proportional to 4,304.72, 6,457.20 and 1,385.20 is: 2,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,304.72 : 6,457.20 = 1,385.20 : x
  2. Step 2: Convert to fraction form
    4,304.72/6,457.20 = 1,385.20/x
  3. Step 3: Cross multiply
    4,304.72x = 6,457.20 × 1,385.20
  4. Step 4: Simplify right side
    4,304.72x = 8,944,513.44
  5. Step 5: Solve for x
    x = 8,944,513.44/4,304.72
  6. Step 6: Final answer
    x = 2,077.84

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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.