Home / 5,135.40-7,087.91-3,457.89

Finding the Fourth Proportional to 5,135.40, 7,087.91 and 3,457.89

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Solution

The fourth proportional to 5,135.40, 7,087.91 and 3,457.89 is: 4,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.40 : 7,087.91 = 3,457.89 : x
  2. Step 2: Convert to fraction form
    5,135.40/7,087.91 = 3,457.89/x
  3. Step 3: Cross multiply
    5,135.40x = 7,087.91 × 3,457.89
  4. Step 4: Simplify right side
    5,135.40x = 24,509,195.82
  5. Step 5: Solve for x
    x = 24,509,195.82/5,135.40
  6. Step 6: Final answer
    x = 4,772.60

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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.