Home / 6,620.18-9,136.02-3,748.68

Finding the Fourth Proportional to 6,620.18, 9,136.02 and 3,748.68

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Solution

The fourth proportional to 6,620.18, 9,136.02 and 3,748.68 is: 5,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.18 : 9,136.02 = 3,748.68 : x
  2. Step 2: Convert to fraction form
    6,620.18/9,136.02 = 3,748.68/x
  3. Step 3: Cross multiply
    6,620.18x = 9,136.02 × 3,748.68
  4. Step 4: Simplify right side
    6,620.18x = 34,248,029.51
  5. Step 5: Solve for x
    x = 34,248,029.51/6,620.18
  6. Step 6: Final answer
    x = 5,173.28

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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.