Home / 4,677.90-7,016.85-1,390.92

Finding the Fourth Proportional to 4,677.90, 7,016.85 and 1,390.92

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Solution

The fourth proportional to 4,677.90, 7,016.85 and 1,390.92 is: 2,086.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.90 : 7,016.85 = 1,390.92 : x
  2. Step 2: Convert to fraction form
    4,677.90/7,016.85 = 1,390.92/x
  3. Step 3: Cross multiply
    4,677.90x = 7,016.85 × 1,390.92
  4. Step 4: Simplify right side
    4,677.90x = 9,759,877.00
  5. Step 5: Solve for x
    x = 9,759,877.00/4,677.90
  6. Step 6: Final answer
    x = 2,086.38

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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.