Home / 2,657.18-3,666.75-1,478.01

Finding the Fourth Proportional to 2,657.18, 3,666.75 and 1,478.01

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Solution

The fourth proportional to 2,657.18, 3,666.75 and 1,478.01 is: 2,039.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.18 : 3,666.75 = 1,478.01 : x
  2. Step 2: Convert to fraction form
    2,657.18/3,666.75 = 1,478.01/x
  3. Step 3: Cross multiply
    2,657.18x = 3,666.75 × 1,478.01
  4. Step 4: Simplify right side
    2,657.18x = 5,419,493.17
  5. Step 5: Solve for x
    x = 5,419,493.17/2,657.18
  6. Step 6: Final answer
    x = 2,039.57

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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.