Home / 2,078.02-3,117.12-617.19

Finding the Fourth Proportional to 2,078.02, 3,117.12 and 617.19

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Solution

The fourth proportional to 2,078.02, 3,117.12 and 617.19 is: 925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.02 : 3,117.12 = 617.19 : x
  2. Step 2: Convert to fraction form
    2,078.02/3,117.12 = 617.19/x
  3. Step 3: Cross multiply
    2,078.02x = 3,117.12 × 617.19
  4. Step 4: Simplify right side
    2,078.02x = 1,923,855.29
  5. Step 5: Solve for x
    x = 1,923,855.29/2,078.02
  6. Step 6: Final answer
    x = 925.81

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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.