Home / 6,103.81-8,427.54-5,390.20

Finding the Fourth Proportional to 6,103.81, 8,427.54 and 5,390.20

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Solution

The fourth proportional to 6,103.81, 8,427.54 and 5,390.20 is: 7,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,103.81 : 8,427.54 = 5,390.20 : x
  2. Step 2: Convert to fraction form
    6,103.81/8,427.54 = 5,390.20/x
  3. Step 3: Cross multiply
    6,103.81x = 8,427.54 × 5,390.20
  4. Step 4: Simplify right side
    6,103.81x = 45,426,126.11
  5. Step 5: Solve for x
    x = 45,426,126.11/6,103.81
  6. Step 6: Final answer
    x = 7,442.26

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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.