Home / 1,312.37-1,968.38-532.80

Finding the Fourth Proportional to 1,312.37, 1,968.38 and 532.80

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Solution

The fourth proportional to 1,312.37, 1,968.38 and 532.80 is: 799.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.37 : 1,968.38 = 532.80 : x
  2. Step 2: Convert to fraction form
    1,312.37/1,968.38 = 532.80/x
  3. Step 3: Cross multiply
    1,312.37x = 1,968.38 × 532.80
  4. Step 4: Simplify right side
    1,312.37x = 1,048,750.20
  5. Step 5: Solve for x
    x = 1,048,750.20/1,312.37
  6. Step 6: Final answer
    x = 799.13

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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.