Home / 2,689.16-4,031.90-1,045.26

Finding the Fourth Proportional to 2,689.16, 4,031.90 and 1,045.26

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Solution

The fourth proportional to 2,689.16, 4,031.90 and 1,045.26 is: 1,567.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.16 : 4,031.90 = 1,045.26 : x
  2. Step 2: Convert to fraction form
    2,689.16/4,031.90 = 1,045.26/x
  3. Step 3: Cross multiply
    2,689.16x = 4,031.90 × 1,045.26
  4. Step 4: Simplify right side
    2,689.16x = 4,214,383.79
  5. Step 5: Solve for x
    x = 4,214,383.79/2,689.16
  6. Step 6: Final answer
    x = 1,567.17

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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.