Home / 1,567.22-2,157.83-1,330.68

Finding the Fourth Proportional to 1,567.22, 2,157.83 and 1,330.68

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Solution

The fourth proportional to 1,567.22, 2,157.83 and 1,330.68 is: 1,832.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.22 : 2,157.83 = 1,330.68 : x
  2. Step 2: Convert to fraction form
    1,567.22/2,157.83 = 1,330.68/x
  3. Step 3: Cross multiply
    1,567.22x = 2,157.83 × 1,330.68
  4. Step 4: Simplify right side
    1,567.22x = 2,871,381.22
  5. Step 5: Solve for x
    x = 2,871,381.22/1,567.22
  6. Step 6: Final answer
    x = 1,832.15

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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.