Home / 3,240.04-4,861.16-1,390.36

Finding the Fourth Proportional to 3,240.04, 4,861.16 and 1,390.36

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Solution

The fourth proportional to 3,240.04, 4,861.16 and 1,390.36 is: 2,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.04 : 4,861.16 = 1,390.36 : x
  2. Step 2: Convert to fraction form
    3,240.04/4,861.16 = 1,390.36/x
  3. Step 3: Cross multiply
    3,240.04x = 4,861.16 × 1,390.36
  4. Step 4: Simplify right side
    3,240.04x = 6,758,762.42
  5. Step 5: Solve for x
    x = 6,758,762.42/3,240.04
  6. Step 6: Final answer
    x = 2,086.01

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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.