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Finding the Fourth Proportional to 4,800.51, 7,200.90 and 1,337.76

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Solution

The fourth proportional to 4,800.51, 7,200.90 and 1,337.76 is: 2,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.51 : 7,200.90 = 1,337.76 : x
  2. Step 2: Convert to fraction form
    4,800.51/7,200.90 = 1,337.76/x
  3. Step 3: Cross multiply
    4,800.51x = 7,200.90 × 1,337.76
  4. Step 4: Simplify right side
    4,800.51x = 9,633,075.98
  5. Step 5: Solve for x
    x = 9,633,075.98/4,800.51
  6. Step 6: Final answer
    x = 2,006.68

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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.