Home / 1,439.04-2,158.92-573.60

Finding the Fourth Proportional to 1,439.04, 2,158.92 and 573.60

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Solution

The fourth proportional to 1,439.04, 2,158.92 and 573.60 is: 860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.04 : 2,158.92 = 573.60 : x
  2. Step 2: Convert to fraction form
    1,439.04/2,158.92 = 573.60/x
  3. Step 3: Cross multiply
    1,439.04x = 2,158.92 × 573.60
  4. Step 4: Simplify right side
    1,439.04x = 1,238,356.51
  5. Step 5: Solve for x
    x = 1,238,356.51/1,439.04
  6. Step 6: Final answer
    x = 860.54

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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.