Home / 7,146.64-10,718.76-1,951.36

Finding the Fourth Proportional to 7,146.64, 10,718.76 and 1,951.36

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Solution

The fourth proportional to 7,146.64, 10,718.76 and 1,951.36 is: 2,926.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.64 : 10,718.76 = 1,951.36 : x
  2. Step 2: Convert to fraction form
    7,146.64/10,718.76 = 1,951.36/x
  3. Step 3: Cross multiply
    7,146.64x = 10,718.76 × 1,951.36
  4. Step 4: Simplify right side
    7,146.64x = 20,916,159.51
  5. Step 5: Solve for x
    x = 20,916,159.51/7,146.64
  6. Step 6: Final answer
    x = 2,926.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.