Home / 4,660.90-6,999.45-4,515.10

Finding the Fourth Proportional to 4,660.90, 6,999.45 and 4,515.10

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Solution

The fourth proportional to 4,660.90, 6,999.45 and 4,515.10 is: 6,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,660.90 : 6,999.45 = 4,515.10 : x
  2. Step 2: Convert to fraction form
    4,660.90/6,999.45 = 4,515.10/x
  3. Step 3: Cross multiply
    4,660.90x = 6,999.45 × 4,515.10
  4. Step 4: Simplify right side
    4,660.90x = 31,603,216.70
  5. Step 5: Solve for x
    x = 31,603,216.70/4,660.90
  6. Step 6: Final answer
    x = 6,780.50

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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.