Home / 2,335.07-3,501.38-691.40

Finding the Fourth Proportional to 2,335.07, 3,501.38 and 691.40

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Solution

The fourth proportional to 2,335.07, 3,501.38 and 691.40 is: 1,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.07 : 3,501.38 = 691.40 : x
  2. Step 2: Convert to fraction form
    2,335.07/3,501.38 = 691.40/x
  3. Step 3: Cross multiply
    2,335.07x = 3,501.38 × 691.40
  4. Step 4: Simplify right side
    2,335.07x = 2,420,864.61
  5. Step 5: Solve for x
    x = 2,420,864.61/2,335.07
  6. Step 6: Final answer
    x = 1,036.74

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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.