Home / 2,959.40-4,081.38-2,369.72

Finding the Fourth Proportional to 2,959.40, 4,081.38 and 2,369.72

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Solution

The fourth proportional to 2,959.40, 4,081.38 and 2,369.72 is: 3,268.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.40 : 4,081.38 = 2,369.72 : x
  2. Step 2: Convert to fraction form
    2,959.40/4,081.38 = 2,369.72/x
  3. Step 3: Cross multiply
    2,959.40x = 4,081.38 × 2,369.72
  4. Step 4: Simplify right side
    2,959.40x = 9,671,727.81
  5. Step 5: Solve for x
    x = 9,671,727.81/2,959.40
  6. Step 6: Final answer
    x = 3,268.14

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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.