Home / 3,388.02-5,077.90-1,538.65

Finding the Fourth Proportional to 3,388.02, 5,077.90 and 1,538.65

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Solution

The fourth proportional to 3,388.02, 5,077.90 and 1,538.65 is: 2,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.02 : 5,077.90 = 1,538.65 : x
  2. Step 2: Convert to fraction form
    3,388.02/5,077.90 = 1,538.65/x
  3. Step 3: Cross multiply
    3,388.02x = 5,077.90 × 1,538.65
  4. Step 4: Simplify right side
    3,388.02x = 7,813,110.84
  5. Step 5: Solve for x
    x = 7,813,110.84/3,388.02
  6. Step 6: Final answer
    x = 2,306.10

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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.