Home / 7,928.40-10,937.76-4,782.84

Finding the Fourth Proportional to 7,928.40, 10,937.76 and 4,782.84

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Solution

The fourth proportional to 7,928.40, 10,937.76 and 4,782.84 is: 6,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.40 : 10,937.76 = 4,782.84 : x
  2. Step 2: Convert to fraction form
    7,928.40/10,937.76 = 4,782.84/x
  3. Step 3: Cross multiply
    7,928.40x = 10,937.76 × 4,782.84
  4. Step 4: Simplify right side
    7,928.40x = 52,313,556.04
  5. Step 5: Solve for x
    x = 52,313,556.04/7,928.40
  6. Step 6: Final answer
    x = 6,598.25

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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.