Home / 2,390.28-3,298.32-1,342.32

Finding the Fourth Proportional to 2,390.28, 3,298.32 and 1,342.32

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Solution

The fourth proportional to 2,390.28, 3,298.32 and 1,342.32 is: 1,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.28 : 3,298.32 = 1,342.32 : x
  2. Step 2: Convert to fraction form
    2,390.28/3,298.32 = 1,342.32/x
  3. Step 3: Cross multiply
    2,390.28x = 3,298.32 × 1,342.32
  4. Step 4: Simplify right side
    2,390.28x = 4,427,400.90
  5. Step 5: Solve for x
    x = 4,427,400.90/2,390.28
  6. Step 6: Final answer
    x = 1,852.25

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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.