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Finding the Fourth Proportional to 3,000.84, 4,500.70 and 1,053.60

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Solution

The fourth proportional to 3,000.84, 4,500.70 and 1,053.60 is: 1,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.84 : 4,500.70 = 1,053.60 : x
  2. Step 2: Convert to fraction form
    3,000.84/4,500.70 = 1,053.60/x
  3. Step 3: Cross multiply
    3,000.84x = 4,500.70 × 1,053.60
  4. Step 4: Simplify right side
    3,000.84x = 4,741,937.52
  5. Step 5: Solve for x
    x = 4,741,937.52/3,000.84
  6. Step 6: Final answer
    x = 1,580.20

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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.