Home / 2,264.90-3,123.98-2,188.70

Finding the Fourth Proportional to 2,264.90, 3,123.98 and 2,188.70

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Solution

The fourth proportional to 2,264.90, 3,123.98 and 2,188.70 is: 3,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.90 : 3,123.98 = 2,188.70 : x
  2. Step 2: Convert to fraction form
    2,264.90/3,123.98 = 2,188.70/x
  3. Step 3: Cross multiply
    2,264.90x = 3,123.98 × 2,188.70
  4. Step 4: Simplify right side
    2,264.90x = 6,837,439.60
  5. Step 5: Solve for x
    x = 6,837,439.60/2,264.90
  6. Step 6: Final answer
    x = 3,018.87

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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.