Home / 3,140.76-4,707.86-1,060.05

Finding the Fourth Proportional to 3,140.76, 4,707.86 and 1,060.05

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Solution

The fourth proportional to 3,140.76, 4,707.86 and 1,060.05 is: 1,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.76 : 4,707.86 = 1,060.05 : x
  2. Step 2: Convert to fraction form
    3,140.76/4,707.86 = 1,060.05/x
  3. Step 3: Cross multiply
    3,140.76x = 4,707.86 × 1,060.05
  4. Step 4: Simplify right side
    3,140.76x = 4,990,561.81
  5. Step 5: Solve for x
    x = 4,990,561.81/3,140.76
  6. Step 6: Final answer
    x = 1,588.97

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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.