Home / 4,701.28-7,051.36-1,238.80

Finding the Fourth Proportional to 4,701.28, 7,051.36 and 1,238.80

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Solution

The fourth proportional to 4,701.28, 7,051.36 and 1,238.80 is: 1,858.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,701.28 : 7,051.36 = 1,238.80 : x
  2. Step 2: Convert to fraction form
    4,701.28/7,051.36 = 1,238.80/x
  3. Step 3: Cross multiply
    4,701.28x = 7,051.36 × 1,238.80
  4. Step 4: Simplify right side
    4,701.28x = 8,735,224.77
  5. Step 5: Solve for x
    x = 8,735,224.77/4,701.28
  6. Step 6: Final answer
    x = 1,858.05

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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.