Home / 3,903.12-5,373.18-3,528.99

Finding the Fourth Proportional to 3,903.12, 5,373.18 and 3,528.99

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Solution

The fourth proportional to 3,903.12, 5,373.18 and 3,528.99 is: 4,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.12 : 5,373.18 = 3,528.99 : x
  2. Step 2: Convert to fraction form
    3,903.12/5,373.18 = 3,528.99/x
  3. Step 3: Cross multiply
    3,903.12x = 5,373.18 × 3,528.99
  4. Step 4: Simplify right side
    3,903.12x = 18,961,898.49
  5. Step 5: Solve for x
    x = 18,961,898.49/3,903.12
  6. Step 6: Final answer
    x = 4,858.14

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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.