Home / 2,649.26-3,656.14-1,530.40

Finding the Fourth Proportional to 2,649.26, 3,656.14 and 1,530.40

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Solution

The fourth proportional to 2,649.26, 3,656.14 and 1,530.40 is: 2,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.26 : 3,656.14 = 1,530.40 : x
  2. Step 2: Convert to fraction form
    2,649.26/3,656.14 = 1,530.40/x
  3. Step 3: Cross multiply
    2,649.26x = 3,656.14 × 1,530.40
  4. Step 4: Simplify right side
    2,649.26x = 5,595,356.66
  5. Step 5: Solve for x
    x = 5,595,356.66/2,649.26
  6. Step 6: Final answer
    x = 2,112.05

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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.