Home / 2,639.19-3,642.30-1,460.64

Finding the Fourth Proportional to 2,639.19, 3,642.30 and 1,460.64

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Solution

The fourth proportional to 2,639.19, 3,642.30 and 1,460.64 is: 2,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.19 : 3,642.30 = 1,460.64 : x
  2. Step 2: Convert to fraction form
    2,639.19/3,642.30 = 1,460.64/x
  3. Step 3: Cross multiply
    2,639.19x = 3,642.30 × 1,460.64
  4. Step 4: Simplify right side
    2,639.19x = 5,320,089.07
  5. Step 5: Solve for x
    x = 5,320,089.07/2,639.19
  6. Step 6: Final answer
    x = 2,015.80

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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.