Home / 1,612.17-2,224.97-904.21

Finding the Fourth Proportional to 1,612.17, 2,224.97 and 904.21

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Solution

The fourth proportional to 1,612.17, 2,224.97 and 904.21 is: 1,247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.17 : 2,224.97 = 904.21 : x
  2. Step 2: Convert to fraction form
    1,612.17/2,224.97 = 904.21/x
  3. Step 3: Cross multiply
    1,612.17x = 2,224.97 × 904.21
  4. Step 4: Simplify right side
    1,612.17x = 2,011,840.12
  5. Step 5: Solve for x
    x = 2,011,840.12/1,612.17
  6. Step 6: Final answer
    x = 1,247.91

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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.