Home / 3,397.13-4,688.57-1,905.65

Finding the Fourth Proportional to 3,397.13, 4,688.57 and 1,905.65

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Solution

The fourth proportional to 3,397.13, 4,688.57 and 1,905.65 is: 2,630.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.13 : 4,688.57 = 1,905.65 : x
  2. Step 2: Convert to fraction form
    3,397.13/4,688.57 = 1,905.65/x
  3. Step 3: Cross multiply
    3,397.13x = 4,688.57 × 1,905.65
  4. Step 4: Simplify right side
    3,397.13x = 8,934,773.42
  5. Step 5: Solve for x
    x = 8,934,773.42/3,397.13
  6. Step 6: Final answer
    x = 2,630.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.