Home / 1,657.17-2,286.42-1,153.21

Finding the Fourth Proportional to 1,657.17, 2,286.42 and 1,153.21

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Solution

The fourth proportional to 1,657.17, 2,286.42 and 1,153.21 is: 1,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.17 : 2,286.42 = 1,153.21 : x
  2. Step 2: Convert to fraction form
    1,657.17/2,286.42 = 1,153.21/x
  3. Step 3: Cross multiply
    1,657.17x = 2,286.42 × 1,153.21
  4. Step 4: Simplify right side
    1,657.17x = 2,636,722.41
  5. Step 5: Solve for x
    x = 2,636,722.41/1,657.17
  6. Step 6: Final answer
    x = 1,591.10

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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.