Home / 7,271.78-10,036.36-4,287.43

Finding the Fourth Proportional to 7,271.78, 10,036.36 and 4,287.43

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Solution

The fourth proportional to 7,271.78, 10,036.36 and 4,287.43 is: 5,917.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.78 : 10,036.36 = 4,287.43 : x
  2. Step 2: Convert to fraction form
    7,271.78/10,036.36 = 4,287.43/x
  3. Step 3: Cross multiply
    7,271.78x = 10,036.36 × 4,287.43
  4. Step 4: Simplify right side
    7,271.78x = 43,030,184.74
  5. Step 5: Solve for x
    x = 43,030,184.74/7,271.78
  6. Step 6: Final answer
    x = 5,917.43

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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.