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Finding the Fourth Proportional to 1,462.36, 2,188.05 and 875.20

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Solution

The fourth proportional to 1,462.36, 2,188.05 and 875.20 is: 1,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.36 : 2,188.05 = 875.20 : x
  2. Step 2: Convert to fraction form
    1,462.36/2,188.05 = 875.20/x
  3. Step 3: Cross multiply
    1,462.36x = 2,188.05 × 875.20
  4. Step 4: Simplify right side
    1,462.36x = 1,914,981.36
  5. Step 5: Solve for x
    x = 1,914,981.36/1,462.36
  6. Step 6: Final answer
    x = 1,309.51

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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.