Home / 2,390.23-3,298.80-1,342.29

Finding the Fourth Proportional to 2,390.23, 3,298.80 and 1,342.29

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Solution

The fourth proportional to 2,390.23, 3,298.80 and 1,342.29 is: 1,852.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.23 : 3,298.80 = 1,342.29 : x
  2. Step 2: Convert to fraction form
    2,390.23/3,298.80 = 1,342.29/x
  3. Step 3: Cross multiply
    2,390.23x = 3,298.80 × 1,342.29
  4. Step 4: Simplify right side
    2,390.23x = 4,427,946.25
  5. Step 5: Solve for x
    x = 4,427,946.25/2,390.23
  6. Step 6: Final answer
    x = 1,852.52

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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.