Home / 7,153.28-10,730.40-1,959.04

Finding the Fourth Proportional to 7,153.28, 10,730.40 and 1,959.04

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Solution

The fourth proportional to 7,153.28, 10,730.40 and 1,959.04 is: 2,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.28 : 10,730.40 = 1,959.04 : x
  2. Step 2: Convert to fraction form
    7,153.28/10,730.40 = 1,959.04/x
  3. Step 3: Cross multiply
    7,153.28x = 10,730.40 × 1,959.04
  4. Step 4: Simplify right side
    7,153.28x = 21,021,282.82
  5. Step 5: Solve for x
    x = 21,021,282.82/7,153.28
  6. Step 6: Final answer
    x = 2,938.69

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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.