Home / 3,649.23-5,036.65-2,157.08

Finding the Fourth Proportional to 3,649.23, 5,036.65 and 2,157.08

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Solution

The fourth proportional to 3,649.23, 5,036.65 and 2,157.08 is: 2,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.23 : 5,036.65 = 2,157.08 : x
  2. Step 2: Convert to fraction form
    3,649.23/5,036.65 = 2,157.08/x
  3. Step 3: Cross multiply
    3,649.23x = 5,036.65 × 2,157.08
  4. Step 4: Simplify right side
    3,649.23x = 10,864,426.41
  5. Step 5: Solve for x
    x = 10,864,426.41/3,649.23
  6. Step 6: Final answer
    x = 2,977.18

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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.