Home / 5,288.76-7,294.86-3,889.08

Finding the Fourth Proportional to 5,288.76, 7,294.86 and 3,889.08

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Solution

The fourth proportional to 5,288.76, 7,294.86 and 3,889.08 is: 5,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.76 : 7,294.86 = 3,889.08 : x
  2. Step 2: Convert to fraction form
    5,288.76/7,294.86 = 3,889.08/x
  3. Step 3: Cross multiply
    5,288.76x = 7,294.86 × 3,889.08
  4. Step 4: Simplify right side
    5,288.76x = 28,370,294.13
  5. Step 5: Solve for x
    x = 28,370,294.13/5,288.76
  6. Step 6: Final answer
    x = 5,364.26

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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.