Home / 2,389.92-3,298.14-1,342.32

Finding the Fourth Proportional to 2,389.92, 3,298.14 and 1,342.32

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Solution

The fourth proportional to 2,389.92, 3,298.14 and 1,342.32 is: 1,852.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.92 : 3,298.14 = 1,342.32 : x
  2. Step 2: Convert to fraction form
    2,389.92/3,298.14 = 1,342.32/x
  3. Step 3: Cross multiply
    2,389.92x = 3,298.14 × 1,342.32
  4. Step 4: Simplify right side
    2,389.92x = 4,427,159.28
  5. Step 5: Solve for x
    x = 4,427,159.28/2,389.92
  6. Step 6: Final answer
    x = 1,852.43

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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.