Home / 1,657.37-2,484.78-1,428.95

Finding the Fourth Proportional to 1,657.37, 2,484.78 and 1,428.95

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Solution

The fourth proportional to 1,657.37, 2,484.78 and 1,428.95 is: 2,142.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.37 : 2,484.78 = 1,428.95 : x
  2. Step 2: Convert to fraction form
    1,657.37/2,484.78 = 1,428.95/x
  3. Step 3: Cross multiply
    1,657.37x = 2,484.78 × 1,428.95
  4. Step 4: Simplify right side
    1,657.37x = 3,550,613.96
  5. Step 5: Solve for x
    x = 3,550,613.96/1,657.37
  6. Step 6: Final answer
    x = 2,142.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.