Home / 7,090.20-9,785.40-4,851.27

Finding the Fourth Proportional to 7,090.20, 9,785.40 and 4,851.27

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Solution

The fourth proportional to 7,090.20, 9,785.40 and 4,851.27 is: 6,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.20 : 9,785.40 = 4,851.27 : x
  2. Step 2: Convert to fraction form
    7,090.20/9,785.40 = 4,851.27/x
  3. Step 3: Cross multiply
    7,090.20x = 9,785.40 × 4,851.27
  4. Step 4: Simplify right side
    7,090.20x = 47,471,617.46
  5. Step 5: Solve for x
    x = 47,471,617.46/7,090.20
  6. Step 6: Final answer
    x = 6,695.38

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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.