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Finding the Fourth Proportional to 3,485.53, 5,228.30 and 888.47

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Solution

The fourth proportional to 3,485.53, 5,228.30 and 888.47 is: 1,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.53 : 5,228.30 = 888.47 : x
  2. Step 2: Convert to fraction form
    3,485.53/5,228.30 = 888.47/x
  3. Step 3: Cross multiply
    3,485.53x = 5,228.30 × 888.47
  4. Step 4: Simplify right side
    3,485.53x = 4,645,178.39
  5. Step 5: Solve for x
    x = 4,645,178.39/3,485.53
  6. Step 6: Final answer
    x = 1,332.70

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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.