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Finding the Fourth Proportional to 4,239, 6,359.58 and 1,607.58

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Solution

The fourth proportional to 4,239, 6,359.58 and 1,607.58 is: 2,411.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239 : 6,359.58 = 1,607.58 : x
  2. Step 2: Convert to fraction form
    4,239/6,359.58 = 1,607.58/x
  3. Step 3: Cross multiply
    4,239x = 6,359.58 × 1,607.58
  4. Step 4: Simplify right side
    4,239x = 10,223,533.62
  5. Step 5: Solve for x
    x = 10,223,533.62/4,239
  6. Step 6: Final answer
    x = 2,411.78

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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.