Home / 2,173.68-3,261.60-875.16

Finding the Fourth Proportional to 2,173.68, 3,261.60 and 875.16

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Solution

The fourth proportional to 2,173.68, 3,261.60 and 875.16 is: 1,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.68 : 3,261.60 = 875.16 : x
  2. Step 2: Convert to fraction form
    2,173.68/3,261.60 = 875.16/x
  3. Step 3: Cross multiply
    2,173.68x = 3,261.60 × 875.16
  4. Step 4: Simplify right side
    2,173.68x = 2,854,421.86
  5. Step 5: Solve for x
    x = 2,854,421.86/2,173.68
  6. Step 6: Final answer
    x = 1,313.17

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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.