Home / 3,123.18-4,305.83-2,590.07

Finding the Fourth Proportional to 3,123.18, 4,305.83 and 2,590.07

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Solution

The fourth proportional to 3,123.18, 4,305.83 and 2,590.07 is: 3,570.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.18 : 4,305.83 = 2,590.07 : x
  2. Step 2: Convert to fraction form
    3,123.18/4,305.83 = 2,590.07/x
  3. Step 3: Cross multiply
    3,123.18x = 4,305.83 × 2,590.07
  4. Step 4: Simplify right side
    3,123.18x = 11,152,366.63
  5. Step 5: Solve for x
    x = 11,152,366.63/3,123.18
  6. Step 6: Final answer
    x = 3,570.84

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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.