Home / 1,622.47-2,238.45-914.17

Finding the Fourth Proportional to 1,622.47, 2,238.45 and 914.17

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Solution

The fourth proportional to 1,622.47, 2,238.45 and 914.17 is: 1,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.47 : 2,238.45 = 914.17 : x
  2. Step 2: Convert to fraction form
    1,622.47/2,238.45 = 914.17/x
  3. Step 3: Cross multiply
    1,622.47x = 2,238.45 × 914.17
  4. Step 4: Simplify right side
    1,622.47x = 2,046,323.84
  5. Step 5: Solve for x
    x = 2,046,323.84/1,622.47
  6. Step 6: Final answer
    x = 1,261.24

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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.