Home / 1,259.65-1,890.15-529.30

Finding the Fourth Proportional to 1,259.65, 1,890.15 and 529.30

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Solution

The fourth proportional to 1,259.65, 1,890.15 and 529.30 is: 794.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.65 : 1,890.15 = 529.30 : x
  2. Step 2: Convert to fraction form
    1,259.65/1,890.15 = 529.30/x
  3. Step 3: Cross multiply
    1,259.65x = 1,890.15 × 529.30
  4. Step 4: Simplify right side
    1,259.65x = 1,000,456.40
  5. Step 5: Solve for x
    x = 1,000,456.40/1,259.65
  6. Step 6: Final answer
    x = 794.23

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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.