Home / 2,985.89-4,118.45-2,426.36

Finding the Fourth Proportional to 2,985.89, 4,118.45 and 2,426.36

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Solution

The fourth proportional to 2,985.89, 4,118.45 and 2,426.36 is: 3,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.89 : 4,118.45 = 2,426.36 : x
  2. Step 2: Convert to fraction form
    2,985.89/4,118.45 = 2,426.36/x
  3. Step 3: Cross multiply
    2,985.89x = 4,118.45 × 2,426.36
  4. Step 4: Simplify right side
    2,985.89x = 9,992,809.62
  5. Step 5: Solve for x
    x = 9,992,809.62/2,985.89
  6. Step 6: Final answer
    x = 3,346.68

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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.