Home / 4,988.06-7,477.99-1,986.40

Finding the Fourth Proportional to 4,988.06, 7,477.99 and 1,986.40

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Solution

The fourth proportional to 4,988.06, 7,477.99 and 1,986.40 is: 2,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.06 : 7,477.99 = 1,986.40 : x
  2. Step 2: Convert to fraction form
    4,988.06/7,477.99 = 1,986.40/x
  3. Step 3: Cross multiply
    4,988.06x = 7,477.99 × 1,986.40
  4. Step 4: Simplify right side
    4,988.06x = 14,854,283.72
  5. Step 5: Solve for x
    x = 14,854,283.72/4,988.06
  6. Step 6: Final answer
    x = 2,977.97

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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.