Home / 3,082.30-4,253.34-1,685.05

Finding the Fourth Proportional to 3,082.30, 4,253.34 and 1,685.05

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Solution

The fourth proportional to 3,082.30, 4,253.34 and 1,685.05 is: 2,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.30 : 4,253.34 = 1,685.05 : x
  2. Step 2: Convert to fraction form
    3,082.30/4,253.34 = 1,685.05/x
  3. Step 3: Cross multiply
    3,082.30x = 4,253.34 × 1,685.05
  4. Step 4: Simplify right side
    3,082.30x = 7,167,090.57
  5. Step 5: Solve for x
    x = 7,167,090.57/3,082.30
  6. Step 6: Final answer
    x = 2,325.24

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Half scale
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Double scale
Find fourth proportional to 3,083.30, 4,254.72 and 1,686.05
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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.