Home / 2,689.18-4,032.96-1,045.36

Finding the Fourth Proportional to 2,689.18, 4,032.96 and 1,045.36

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Solution

The fourth proportional to 2,689.18, 4,032.96 and 1,045.36 is: 1,567.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.18 : 4,032.96 = 1,045.36 : x
  2. Step 2: Convert to fraction form
    2,689.18/4,032.96 = 1,045.36/x
  3. Step 3: Cross multiply
    2,689.18x = 4,032.96 × 1,045.36
  4. Step 4: Simplify right side
    2,689.18x = 4,215,895.07
  5. Step 5: Solve for x
    x = 4,215,895.07/2,689.18
  6. Step 6: Final answer
    x = 1,567.73

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1.5x scale

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.