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Finding the Fourth Proportional to 4,000.47, 6,000.70 and 1,079.07

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Solution

The fourth proportional to 4,000.47, 6,000.70 and 1,079.07 is: 1,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.47 : 6,000.70 = 1,079.07 : x
  2. Step 2: Convert to fraction form
    4,000.47/6,000.70 = 1,079.07/x
  3. Step 3: Cross multiply
    4,000.47x = 6,000.70 × 1,079.07
  4. Step 4: Simplify right side
    4,000.47x = 6,475,175.35
  5. Step 5: Solve for x
    x = 6,475,175.35/4,000.47
  6. Step 6: Final answer
    x = 1,618.60

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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.