Home / 2,689.91-4,035.25-1,302.11

Finding the Fourth Proportional to 2,689.91, 4,035.25 and 1,302.11

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Solution

The fourth proportional to 2,689.91, 4,035.25 and 1,302.11 is: 1,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.91 : 4,035.25 = 1,302.11 : x
  2. Step 2: Convert to fraction form
    2,689.91/4,035.25 = 1,302.11/x
  3. Step 3: Cross multiply
    2,689.91x = 4,035.25 × 1,302.11
  4. Step 4: Simplify right side
    2,689.91x = 5,254,319.20
  5. Step 5: Solve for x
    x = 5,254,319.20/2,689.91
  6. Step 6: Final answer
    x = 1,953.34

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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.