Home / 4,720.80-7,081.89-1,758.49

Finding the Fourth Proportional to 4,720.80, 7,081.89 and 1,758.49

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Solution

The fourth proportional to 4,720.80, 7,081.89 and 1,758.49 is: 2,637.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.80 : 7,081.89 = 1,758.49 : x
  2. Step 2: Convert to fraction form
    4,720.80/7,081.89 = 1,758.49/x
  3. Step 3: Cross multiply
    4,720.80x = 7,081.89 × 1,758.49
  4. Step 4: Simplify right side
    4,720.80x = 12,453,432.75
  5. Step 5: Solve for x
    x = 12,453,432.75/4,720.80
  6. Step 6: Final answer
    x = 2,637.99

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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.