Home / 1,289.72-1,931.99-595.45

Finding the Fourth Proportional to 1,289.72, 1,931.99 and 595.45

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Solution

The fourth proportional to 1,289.72, 1,931.99 and 595.45 is: 891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289.72 : 1,931.99 = 595.45 : x
  2. Step 2: Convert to fraction form
    1,289.72/1,931.99 = 595.45/x
  3. Step 3: Cross multiply
    1,289.72x = 1,931.99 × 595.45
  4. Step 4: Simplify right side
    1,289.72x = 1,150,393.79
  5. Step 5: Solve for x
    x = 1,150,393.79/1,289.72
  6. Step 6: Final answer
    x = 891.98

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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.