Home / 1,312.36-1,968.15-532.20

Finding the Fourth Proportional to 1,312.36, 1,968.15 and 532.20

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Solution

The fourth proportional to 1,312.36, 1,968.15 and 532.20 is: 798.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.36 : 1,968.15 = 532.20 : x
  2. Step 2: Convert to fraction form
    1,312.36/1,968.15 = 532.20/x
  3. Step 3: Cross multiply
    1,312.36x = 1,968.15 × 532.20
  4. Step 4: Simplify right side
    1,312.36x = 1,047,449.43
  5. Step 5: Solve for x
    x = 1,047,449.43/1,312.36
  6. Step 6: Final answer
    x = 798.14

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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.