Home / 7,004.40-9,640.80-4,904.88

Finding the Fourth Proportional to 7,004.40, 9,640.80 and 4,904.88

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Solution

The fourth proportional to 7,004.40, 9,640.80 and 4,904.88 is: 6,751.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,004.40 : 9,640.80 = 4,904.88 : x
  2. Step 2: Convert to fraction form
    7,004.40/9,640.80 = 4,904.88/x
  3. Step 3: Cross multiply
    7,004.40x = 9,640.80 × 4,904.88
  4. Step 4: Simplify right side
    7,004.40x = 47,286,967.10
  5. Step 5: Solve for x
    x = 47,286,967.10/7,004.40
  6. Step 6: Final answer
    x = 6,751.04

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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.