Home / 3,685.40-5,534.14-2,420.99

Finding the Fourth Proportional to 3,685.40, 5,534.14 and 2,420.99

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Solution

The fourth proportional to 3,685.40, 5,534.14 and 2,420.99 is: 3,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.40 : 5,534.14 = 2,420.99 : x
  2. Step 2: Convert to fraction form
    3,685.40/5,534.14 = 2,420.99/x
  3. Step 3: Cross multiply
    3,685.40x = 5,534.14 × 2,420.99
  4. Step 4: Simplify right side
    3,685.40x = 13,398,105.38
  5. Step 5: Solve for x
    x = 13,398,105.38/3,685.40
  6. Step 6: Final answer
    x = 3,635.45

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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.