Home / 1,312.21-1,968.33-1,051

Finding the Fourth Proportional to 1,312.21, 1,968.33 and 1,051

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Solution

The fourth proportional to 1,312.21, 1,968.33 and 1,051 is: 1,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312.21 : 1,968.33 = 1,051 : x
  2. Step 2: Convert to fraction form
    1,312.21/1,968.33 = 1,051/x
  3. Step 3: Cross multiply
    1,312.21x = 1,968.33 × 1,051
  4. Step 4: Simplify right side
    1,312.21x = 2,068,714.83
  5. Step 5: Solve for x
    x = 2,068,714.83/1,312.21
  6. Step 6: Final answer
    x = 1,576.51

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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.