Home / 3,681.32-5,521.64-1,216.08

Finding the Fourth Proportional to 3,681.32, 5,521.64 and 1,216.08

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Solution

The fourth proportional to 3,681.32, 5,521.64 and 1,216.08 is: 1,824.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.32 : 5,521.64 = 1,216.08 : x
  2. Step 2: Convert to fraction form
    3,681.32/5,521.64 = 1,216.08/x
  3. Step 3: Cross multiply
    3,681.32x = 5,521.64 × 1,216.08
  4. Step 4: Simplify right side
    3,681.32x = 6,714,749.89
  5. Step 5: Solve for x
    x = 6,714,749.89/3,681.32
  6. Step 6: Final answer
    x = 1,824.01

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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.