Home / 2,657.07-3,666.76-1,478.21

Finding the Fourth Proportional to 2,657.07, 3,666.76 and 1,478.21

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Solution

The fourth proportional to 2,657.07, 3,666.76 and 1,478.21 is: 2,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.07 : 3,666.76 = 1,478.21 : x
  2. Step 2: Convert to fraction form
    2,657.07/3,666.76 = 1,478.21/x
  3. Step 3: Cross multiply
    2,657.07x = 3,666.76 × 1,478.21
  4. Step 4: Simplify right side
    2,657.07x = 5,420,241.30
  5. Step 5: Solve for x
    x = 5,420,241.30/2,657.07
  6. Step 6: Final answer
    x = 2,039.93

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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.