Home / 3,681.24-5,077.80-2,420.34

Finding the Fourth Proportional to 3,681.24, 5,077.80 and 2,420.34

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Solution

The fourth proportional to 3,681.24, 5,077.80 and 2,420.34 is: 3,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.24 : 5,077.80 = 2,420.34 : x
  2. Step 2: Convert to fraction form
    3,681.24/5,077.80 = 2,420.34/x
  3. Step 3: Cross multiply
    3,681.24x = 5,077.80 × 2,420.34
  4. Step 4: Simplify right side
    3,681.24x = 12,290,002.45
  5. Step 5: Solve for x
    x = 12,290,002.45/3,681.24
  6. Step 6: Final answer
    x = 3,338.55

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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.