Home / 5,618.49-8,435.02-4,320.87

Finding the Fourth Proportional to 5,618.49, 8,435.02 and 4,320.87

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Solution

The fourth proportional to 5,618.49, 8,435.02 and 4,320.87 is: 6,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.49 : 8,435.02 = 4,320.87 : x
  2. Step 2: Convert to fraction form
    5,618.49/8,435.02 = 4,320.87/x
  3. Step 3: Cross multiply
    5,618.49x = 8,435.02 × 4,320.87
  4. Step 4: Simplify right side
    5,618.49x = 36,446,624.87
  5. Step 5: Solve for x
    x = 36,446,624.87/5,618.49
  6. Step 6: Final answer
    x = 6,486.91

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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.