Home / 2,572.28-3,858.90-1,648.76

Finding the Fourth Proportional to 2,572.28, 3,858.90 and 1,648.76

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Solution

The fourth proportional to 2,572.28, 3,858.90 and 1,648.76 is: 2,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.28 : 3,858.90 = 1,648.76 : x
  2. Step 2: Convert to fraction form
    2,572.28/3,858.90 = 1,648.76/x
  3. Step 3: Cross multiply
    2,572.28x = 3,858.90 × 1,648.76
  4. Step 4: Simplify right side
    2,572.28x = 6,362,399.96
  5. Step 5: Solve for x
    x = 6,362,399.96/2,572.28
  6. Step 6: Final answer
    x = 2,473.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.