Home / 2,639.48-3,642.35-1,444.40

Finding the Fourth Proportional to 2,639.48, 3,642.35 and 1,444.40

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Solution

The fourth proportional to 2,639.48, 3,642.35 and 1,444.40 is: 1,993.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.48 : 3,642.35 = 1,444.40 : x
  2. Step 2: Convert to fraction form
    2,639.48/3,642.35 = 1,444.40/x
  3. Step 3: Cross multiply
    2,639.48x = 3,642.35 × 1,444.40
  4. Step 4: Simplify right side
    2,639.48x = 5,260,984.91
  5. Step 5: Solve for x
    x = 5,260,984.91/2,639.48
  6. Step 6: Final answer
    x = 1,993.19

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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.