Home / 5,289.51-7,288.88-3,953.55

Finding the Fourth Proportional to 5,289.51, 7,288.88 and 3,953.55

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Solution

The fourth proportional to 5,289.51, 7,288.88 and 3,953.55 is: 5,447.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.51 : 7,288.88 = 3,953.55 : x
  2. Step 2: Convert to fraction form
    5,289.51/7,288.88 = 3,953.55/x
  3. Step 3: Cross multiply
    5,289.51x = 7,288.88 × 3,953.55
  4. Step 4: Simplify right side
    5,289.51x = 28,816,931.76
  5. Step 5: Solve for x
    x = 28,816,931.76/5,289.51
  6. Step 6: Final answer
    x = 5,447.94

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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.