Home / 4,409.98-6,615.45-1,290.00

Finding the Fourth Proportional to 4,409.98, 6,615.45 and 1,290.00

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Solution

The fourth proportional to 4,409.98, 6,615.45 and 1,290.00 is: 1,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.98 : 6,615.45 = 1,290.00 : x
  2. Step 2: Convert to fraction form
    4,409.98/6,615.45 = 1,290.00/x
  3. Step 3: Cross multiply
    4,409.98x = 6,615.45 × 1,290.00
  4. Step 4: Simplify right side
    4,409.98x = 8,533,943.54
  5. Step 5: Solve for x
    x = 8,533,943.54/4,409.98
  6. Step 6: Final answer
    x = 1,935.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.