Home / 1,712.69-2,363.91-1,432.45

Finding the Fourth Proportional to 1,712.69, 2,363.91 and 1,432.45

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Solution

The fourth proportional to 1,712.69, 2,363.91 and 1,432.45 is: 1,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.69 : 2,363.91 = 1,432.45 : x
  2. Step 2: Convert to fraction form
    1,712.69/2,363.91 = 1,432.45/x
  3. Step 3: Cross multiply
    1,712.69x = 2,363.91 × 1,432.45
  4. Step 4: Simplify right side
    1,712.69x = 3,386,182.88
  5. Step 5: Solve for x
    x = 3,386,182.88/1,712.69
  6. Step 6: Final answer
    x = 1,977.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.