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Finding the Fourth Proportional to 3,430.62, 4,703.70 and 3,397.82

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Solution

The fourth proportional to 3,430.62, 4,703.70 and 3,397.82 is: 4,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.62 : 4,703.70 = 3,397.82 : x
  2. Step 2: Convert to fraction form
    3,430.62/4,703.70 = 3,397.82/x
  3. Step 3: Cross multiply
    3,430.62x = 4,703.70 × 3,397.82
  4. Step 4: Simplify right side
    3,430.62x = 15,982,315.16
  5. Step 5: Solve for x
    x = 15,982,315.16/3,430.62
  6. Step 6: Final answer
    x = 4,658.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.