Home / 4,761.77-7,142.39-1,298.75

Finding the Fourth Proportional to 4,761.77, 7,142.39 and 1,298.75

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Solution

The fourth proportional to 4,761.77, 7,142.39 and 1,298.75 is: 1,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.77 : 7,142.39 = 1,298.75 : x
  2. Step 2: Convert to fraction form
    4,761.77/7,142.39 = 1,298.75/x
  3. Step 3: Cross multiply
    4,761.77x = 7,142.39 × 1,298.75
  4. Step 4: Simplify right side
    4,761.77x = 9,276,172.52
  5. Step 5: Solve for x
    x = 9,276,172.52/4,761.77
  6. Step 6: Final answer
    x = 1,948.05

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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.