Home / 4,740.50-7,110.75-1,277.75

Finding the Fourth Proportional to 4,740.50, 7,110.75 and 1,277.75

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Solution

The fourth proportional to 4,740.50, 7,110.75 and 1,277.75 is: 1,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.50 : 7,110.75 = 1,277.75 : x
  2. Step 2: Convert to fraction form
    4,740.50/7,110.75 = 1,277.75/x
  3. Step 3: Cross multiply
    4,740.50x = 7,110.75 × 1,277.75
  4. Step 4: Simplify right side
    4,740.50x = 9,085,760.81
  5. Step 5: Solve for x
    x = 9,085,760.81/4,740.50
  6. Step 6: Final answer
    x = 1,916.63

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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.