Home / 4,659.12-6,428.85-2,642.40

Finding the Fourth Proportional to 4,659.12, 6,428.85 and 2,642.40

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Solution

The fourth proportional to 4,659.12, 6,428.85 and 2,642.40 is: 3,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659.12 : 6,428.85 = 2,642.40 : x
  2. Step 2: Convert to fraction form
    4,659.12/6,428.85 = 2,642.40/x
  3. Step 3: Cross multiply
    4,659.12x = 6,428.85 × 2,642.40
  4. Step 4: Simplify right side
    4,659.12x = 16,987,593.24
  5. Step 5: Solve for x
    x = 16,987,593.24/4,659.12
  6. Step 6: Final answer
    x = 3,646.09

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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.