Home / 1,439.32-2,159.21-1,027.74

Finding the Fourth Proportional to 1,439.32, 2,159.21 and 1,027.74

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Solution

The fourth proportional to 1,439.32, 2,159.21 and 1,027.74 is: 1,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.32 : 2,159.21 = 1,027.74 : x
  2. Step 2: Convert to fraction form
    1,439.32/2,159.21 = 1,027.74/x
  3. Step 3: Cross multiply
    1,439.32x = 2,159.21 × 1,027.74
  4. Step 4: Simplify right side
    1,439.32x = 2,219,099.23
  5. Step 5: Solve for x
    x = 2,219,099.23/1,439.32
  6. Step 6: Final answer
    x = 1,541.77

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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.