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Finding the Fourth Proportional to 3,000.55, 4,498.80 and 1,595.20

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Solution

The fourth proportional to 3,000.55, 4,498.80 and 1,595.20 is: 2,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.55 : 4,498.80 = 1,595.20 : x
  2. Step 2: Convert to fraction form
    3,000.55/4,498.80 = 1,595.20/x
  3. Step 3: Cross multiply
    3,000.55x = 4,498.80 × 1,595.20
  4. Step 4: Simplify right side
    3,000.55x = 7,176,485.76
  5. Step 5: Solve for x
    x = 7,176,485.76/3,000.55
  6. Step 6: Final answer
    x = 2,391.72

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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.