Home / 2,455.04-3,681.92-1,221.55

Finding the Fourth Proportional to 2,455.04, 3,681.92 and 1,221.55

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Solution

The fourth proportional to 2,455.04, 3,681.92 and 1,221.55 is: 1,832.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.04 : 3,681.92 = 1,221.55 : x
  2. Step 2: Convert to fraction form
    2,455.04/3,681.92 = 1,221.55/x
  3. Step 3: Cross multiply
    2,455.04x = 3,681.92 × 1,221.55
  4. Step 4: Simplify right side
    2,455.04x = 4,497,643.23
  5. Step 5: Solve for x
    x = 4,497,643.23/2,455.04
  6. Step 6: Final answer
    x = 1,832.00

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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.