Home / 1,530.40-2,289.84-1,337.64

Finding the Fourth Proportional to 1,530.40, 2,289.84 and 1,337.64

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Solution

The fourth proportional to 1,530.40, 2,289.84 and 1,337.64 is: 2,001.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.40 : 2,289.84 = 1,337.64 : x
  2. Step 2: Convert to fraction form
    1,530.40/2,289.84 = 1,337.64/x
  3. Step 3: Cross multiply
    1,530.40x = 2,289.84 × 1,337.64
  4. Step 4: Simplify right side
    1,530.40x = 3,062,981.58
  5. Step 5: Solve for x
    x = 3,062,981.58/1,530.40
  6. Step 6: Final answer
    x = 2,001.43

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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.