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Finding the Fourth Proportional to 7,603.02, 10,491.78 and 4,459

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Solution

The fourth proportional to 7,603.02, 10,491.78 and 4,459 is: 6,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.02 : 10,491.78 = 4,459 : x
  2. Step 2: Convert to fraction form
    7,603.02/10,491.78 = 4,459/x
  3. Step 3: Cross multiply
    7,603.02x = 10,491.78 × 4,459
  4. Step 4: Simplify right side
    7,603.02x = 46,782,847.02
  5. Step 5: Solve for x
    x = 46,782,847.02/7,603.02
  6. Step 6: Final answer
    x = 6,153.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.