Home / 2,173.56-3,261.21-875.13

Finding the Fourth Proportional to 2,173.56, 3,261.21 and 875.13

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Solution

The fourth proportional to 2,173.56, 3,261.21 and 875.13 is: 1,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.56 : 3,261.21 = 875.13 : x
  2. Step 2: Convert to fraction form
    2,173.56/3,261.21 = 875.13/x
  3. Step 3: Cross multiply
    2,173.56x = 3,261.21 × 875.13
  4. Step 4: Simplify right side
    2,173.56x = 2,853,982.71
  5. Step 5: Solve for x
    x = 2,853,982.71/2,173.56
  6. Step 6: Final answer
    x = 1,313.05

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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.