Home / 1,567.22-2,157.81-1,330.66

Finding the Fourth Proportional to 1,567.22, 2,157.81 and 1,330.66

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Solution

The fourth proportional to 1,567.22, 2,157.81 and 1,330.66 is: 1,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.22 : 2,157.81 = 1,330.66 : x
  2. Step 2: Convert to fraction form
    1,567.22/2,157.81 = 1,330.66/x
  3. Step 3: Cross multiply
    1,567.22x = 2,157.81 × 1,330.66
  4. Step 4: Simplify right side
    1,567.22x = 2,871,309.16
  5. Step 5: Solve for x
    x = 2,871,309.16/1,567.22
  6. Step 6: Final answer
    x = 1,832.11

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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.