Home / 5,187.75-7,154.10-3,490.08

Finding the Fourth Proportional to 5,187.75, 7,154.10 and 3,490.08

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Solution

The fourth proportional to 5,187.75, 7,154.10 and 3,490.08 is: 4,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.75 : 7,154.10 = 3,490.08 : x
  2. Step 2: Convert to fraction form
    5,187.75/7,154.10 = 3,490.08/x
  3. Step 3: Cross multiply
    5,187.75x = 7,154.10 × 3,490.08
  4. Step 4: Simplify right side
    5,187.75x = 24,968,381.33
  5. Step 5: Solve for x
    x = 24,968,381.33/5,187.75
  6. Step 6: Final answer
    x = 4,812.95

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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.