Home / 6,290.40-8,681.84-3,637.36

Finding the Fourth Proportional to 6,290.40, 8,681.84 and 3,637.36

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Solution

The fourth proportional to 6,290.40, 8,681.84 and 3,637.36 is: 5,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.40 : 8,681.84 = 3,637.36 : x
  2. Step 2: Convert to fraction form
    6,290.40/8,681.84 = 3,637.36/x
  3. Step 3: Cross multiply
    6,290.40x = 8,681.84 × 3,637.36
  4. Step 4: Simplify right side
    6,290.40x = 31,578,977.54
  5. Step 5: Solve for x
    x = 31,578,977.54/6,290.40
  6. Step 6: Final answer
    x = 5,020.19

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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.