Home / 2,920.16-4,027.42-2,123.53

Finding the Fourth Proportional to 2,920.16, 4,027.42 and 2,123.53

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Solution

The fourth proportional to 2,920.16, 4,027.42 and 2,123.53 is: 2,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.16 : 4,027.42 = 2,123.53 : x
  2. Step 2: Convert to fraction form
    2,920.16/4,027.42 = 2,123.53/x
  3. Step 3: Cross multiply
    2,920.16x = 4,027.42 × 2,123.53
  4. Step 4: Simplify right side
    2,920.16x = 8,552,347.19
  5. Step 5: Solve for x
    x = 8,552,347.19/2,920.16
  6. Step 6: Final answer
    x = 2,928.73

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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.