Home / 2,420.29-3,340.14-1,712.35

Finding the Fourth Proportional to 2,420.29, 3,340.14 and 1,712.35

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Solution

The fourth proportional to 2,420.29, 3,340.14 and 1,712.35 is: 2,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.29 : 3,340.14 = 1,712.35 : x
  2. Step 2: Convert to fraction form
    2,420.29/3,340.14 = 1,712.35/x
  3. Step 3: Cross multiply
    2,420.29x = 3,340.14 × 1,712.35
  4. Step 4: Simplify right side
    2,420.29x = 5,719,488.73
  5. Step 5: Solve for x
    x = 5,719,488.73/2,420.29
  6. Step 6: Final answer
    x = 2,363.14

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1.5x scale

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.