Home / 6,290.81-8,681.40-3,458.17

Finding the Fourth Proportional to 6,290.81, 8,681.40 and 3,458.17

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Solution

The fourth proportional to 6,290.81, 8,681.40 and 3,458.17 is: 4,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.81 : 8,681.40 = 3,458.17 : x
  2. Step 2: Convert to fraction form
    6,290.81/8,681.40 = 3,458.17/x
  3. Step 3: Cross multiply
    6,290.81x = 8,681.40 × 3,458.17
  4. Step 4: Simplify right side
    6,290.81x = 30,021,757.04
  5. Step 5: Solve for x
    x = 30,021,757.04/6,290.81
  6. Step 6: Final answer
    x = 4,772.32

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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.