Home / 1,851.76-2,555.32-1,065.75

Finding the Fourth Proportional to 1,851.76, 2,555.32 and 1,065.75

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Solution

The fourth proportional to 1,851.76, 2,555.32 and 1,065.75 is: 1,470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.76 : 2,555.32 = 1,065.75 : x
  2. Step 2: Convert to fraction form
    1,851.76/2,555.32 = 1,065.75/x
  3. Step 3: Cross multiply
    1,851.76x = 2,555.32 × 1,065.75
  4. Step 4: Simplify right side
    1,851.76x = 2,723,332.29
  5. Step 5: Solve for x
    x = 2,723,332.29/1,851.76
  6. Step 6: Final answer
    x = 1,470.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.