Home / 1,559.36-2,325.12-1,387.64

Finding the Fourth Proportional to 1,559.36, 2,325.12 and 1,387.64

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Solution

The fourth proportional to 1,559.36, 2,325.12 and 1,387.64 is: 2,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.36 : 2,325.12 = 1,387.64 : x
  2. Step 2: Convert to fraction form
    1,559.36/2,325.12 = 1,387.64/x
  3. Step 3: Cross multiply
    1,559.36x = 2,325.12 × 1,387.64
  4. Step 4: Simplify right side
    1,559.36x = 3,226,429.52
  5. Step 5: Solve for x
    x = 3,226,429.52/1,559.36
  6. Step 6: Final answer
    x = 2,069.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.