Home / 4,187.81-6,281.53-1,722.58

Finding the Fourth Proportional to 4,187.81, 6,281.53 and 1,722.58

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Solution

The fourth proportional to 4,187.81, 6,281.53 and 1,722.58 is: 2,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.81 : 6,281.53 = 1,722.58 : x
  2. Step 2: Convert to fraction form
    4,187.81/6,281.53 = 1,722.58/x
  3. Step 3: Cross multiply
    4,187.81x = 6,281.53 × 1,722.58
  4. Step 4: Simplify right side
    4,187.81x = 10,820,417.94
  5. Step 5: Solve for x
    x = 10,820,417.94/4,187.81
  6. Step 6: Final answer
    x = 2,583.79

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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.