Home / 6,781.44-9,359.16-4,130.40

Finding the Fourth Proportional to 6,781.44, 9,359.16 and 4,130.40

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Solution

The fourth proportional to 6,781.44, 9,359.16 and 4,130.40 is: 5,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.44 : 9,359.16 = 4,130.40 : x
  2. Step 2: Convert to fraction form
    6,781.44/9,359.16 = 4,130.40/x
  3. Step 3: Cross multiply
    6,781.44x = 9,359.16 × 4,130.40
  4. Step 4: Simplify right side
    6,781.44x = 38,657,074.46
  5. Step 5: Solve for x
    x = 38,657,074.46/6,781.44
  6. Step 6: Final answer
    x = 5,700.42

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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.