Home / 1,612.68-2,225.91-914.46

Finding the Fourth Proportional to 1,612.68, 2,225.91 and 914.46

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Solution

The fourth proportional to 1,612.68, 2,225.91 and 914.46 is: 1,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.68 : 2,225.91 = 914.46 : x
  2. Step 2: Convert to fraction form
    1,612.68/2,225.91 = 914.46/x
  3. Step 3: Cross multiply
    1,612.68x = 2,225.91 × 914.46
  4. Step 4: Simplify right side
    1,612.68x = 2,035,505.66
  5. Step 5: Solve for x
    x = 2,035,505.66/1,612.68
  6. Step 6: Final answer
    x = 1,262.19

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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.