Home / 1,657.26-2,497.80-1,428.90

Finding the Fourth Proportional to 1,657.26, 2,497.80 and 1,428.90

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Solution

The fourth proportional to 1,657.26, 2,497.80 and 1,428.90 is: 2,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.26 : 2,497.80 = 1,428.90 : x
  2. Step 2: Convert to fraction form
    1,657.26/2,497.80 = 1,428.90/x
  3. Step 3: Cross multiply
    1,657.26x = 2,497.80 × 1,428.90
  4. Step 4: Simplify right side
    1,657.26x = 3,569,106.42
  5. Step 5: Solve for x
    x = 3,569,106.42/1,657.26
  6. Step 6: Final answer
    x = 2,153.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.