Home / 1,312.16-1,968.32-532.32

Finding the Fourth Proportional to 1,312.16, 1,968.32 and 532.32

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Solution

The fourth proportional to 1,312.16, 1,968.32 and 532.32 is: 798.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.16 : 1,968.32 = 532.32 : x
  2. Step 2: Convert to fraction form
    1,312.16/1,968.32 = 532.32/x
  3. Step 3: Cross multiply
    1,312.16x = 1,968.32 × 532.32
  4. Step 4: Simplify right side
    1,312.16x = 1,047,776.10
  5. Step 5: Solve for x
    x = 1,047,776.10/1,312.16
  6. Step 6: Final answer
    x = 798.51

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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.