Home / 2,390.16-3,298.40-1,342.22

Finding the Fourth Proportional to 2,390.16, 3,298.40 and 1,342.22

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Solution

The fourth proportional to 2,390.16, 3,298.40 and 1,342.22 is: 1,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.16 : 3,298.40 = 1,342.22 : x
  2. Step 2: Convert to fraction form
    2,390.16/3,298.40 = 1,342.22/x
  3. Step 3: Cross multiply
    2,390.16x = 3,298.40 × 1,342.22
  4. Step 4: Simplify right side
    2,390.16x = 4,427,178.45
  5. Step 5: Solve for x
    x = 4,427,178.45/2,390.16
  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.