Home / 2,649.68-3,656.78-1,471.13

Finding the Fourth Proportional to 2,649.68, 3,656.78 and 1,471.13

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Solution

The fourth proportional to 2,649.68, 3,656.78 and 1,471.13 is: 2,030.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.68 : 3,656.78 = 1,471.13 : x
  2. Step 2: Convert to fraction form
    2,649.68/3,656.78 = 1,471.13/x
  3. Step 3: Cross multiply
    2,649.68x = 3,656.78 × 1,471.13
  4. Step 4: Simplify right side
    2,649.68x = 5,379,598.76
  5. Step 5: Solve for x
    x = 5,379,598.76/2,649.68
  6. Step 6: Final answer
    x = 2,030.28

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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.