Home / 1,312.12-1,968.39-532.17

Finding the Fourth Proportional to 1,312.12, 1,968.39 and 532.17

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Solution

The fourth proportional to 1,312.12, 1,968.39 and 532.17 is: 798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.12 : 1,968.39 = 532.17 : x
  2. Step 2: Convert to fraction form
    1,312.12/1,968.39 = 532.17/x
  3. Step 3: Cross multiply
    1,312.12x = 1,968.39 × 532.17
  4. Step 4: Simplify right side
    1,312.12x = 1,047,518.11
  5. Step 5: Solve for x
    x = 1,047,518.11/1,312.12
  6. Step 6: Final answer
    x = 798.34

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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.