Home / 1,612.70-2,225.61-983.13

Finding the Fourth Proportional to 1,612.70, 2,225.61 and 983.13

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Solution

The fourth proportional to 1,612.70, 2,225.61 and 983.13 is: 1,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.70 : 2,225.61 = 983.13 : x
  2. Step 2: Convert to fraction form
    1,612.70/2,225.61 = 983.13/x
  3. Step 3: Cross multiply
    1,612.70x = 2,225.61 × 983.13
  4. Step 4: Simplify right side
    1,612.70x = 2,188,063.96
  5. Step 5: Solve for x
    x = 2,188,063.96/1,612.70
  6. Step 6: Final answer
    x = 1,356.77

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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.