Home / 2,586.40-3,568.96-1,538.32

Finding the Fourth Proportional to 2,586.40, 3,568.96 and 1,538.32

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Solution

The fourth proportional to 2,586.40, 3,568.96 and 1,538.32 is: 2,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.40 : 3,568.96 = 1,538.32 : x
  2. Step 2: Convert to fraction form
    2,586.40/3,568.96 = 1,538.32/x
  3. Step 3: Cross multiply
    2,586.40x = 3,568.96 × 1,538.32
  4. Step 4: Simplify right side
    2,586.40x = 5,490,202.55
  5. Step 5: Solve for x
    x = 5,490,202.55/2,586.40
  6. Step 6: Final answer
    x = 2,122.72

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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.