Home / 7,090.40-9,785.52-4,106.16

Finding the Fourth Proportional to 7,090.40, 9,785.52 and 4,106.16

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Solution

The fourth proportional to 7,090.40, 9,785.52 and 4,106.16 is: 5,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.40 : 9,785.52 = 4,106.16 : x
  2. Step 2: Convert to fraction form
    7,090.40/9,785.52 = 4,106.16/x
  3. Step 3: Cross multiply
    7,090.40x = 9,785.52 × 4,106.16
  4. Step 4: Simplify right side
    7,090.40x = 40,180,910.80
  5. Step 5: Solve for x
    x = 40,180,910.80/7,090.40
  6. Step 6: Final answer
    x = 5,666.95

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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.