Home / 1,549.86-2,325.06-1,388.40

Finding the Fourth Proportional to 1,549.86, 2,325.06 and 1,388.40

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Solution

The fourth proportional to 1,549.86, 2,325.06 and 1,388.40 is: 2,082.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.86 : 2,325.06 = 1,388.40 : x
  2. Step 2: Convert to fraction form
    1,549.86/2,325.06 = 1,388.40/x
  3. Step 3: Cross multiply
    1,549.86x = 2,325.06 × 1,388.40
  4. Step 4: Simplify right side
    1,549.86x = 3,228,113.30
  5. Step 5: Solve for x
    x = 3,228,113.30/1,549.86
  6. Step 6: Final answer
    x = 2,082.84

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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.