Home / 3,159.48-4,354.86-2,894.77

Finding the Fourth Proportional to 3,159.48, 4,354.86 and 2,894.77

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Solution

The fourth proportional to 3,159.48, 4,354.86 and 2,894.77 is: 3,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.48 : 4,354.86 = 2,894.77 : x
  2. Step 2: Convert to fraction form
    3,159.48/4,354.86 = 2,894.77/x
  3. Step 3: Cross multiply
    3,159.48x = 4,354.86 × 2,894.77
  4. Step 4: Simplify right side
    3,159.48x = 12,606,318.08
  5. Step 5: Solve for x
    x = 12,606,318.08/3,159.48
  6. Step 6: Final answer
    x = 3,990.00

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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.