Home / 1,365.28-2,050.80-1,019.68

Finding the Fourth Proportional to 1,365.28, 2,050.80 and 1,019.68

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Solution

The fourth proportional to 1,365.28, 2,050.80 and 1,019.68 is: 1,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.28 : 2,050.80 = 1,019.68 : x
  2. Step 2: Convert to fraction form
    1,365.28/2,050.80 = 1,019.68/x
  3. Step 3: Cross multiply
    1,365.28x = 2,050.80 × 1,019.68
  4. Step 4: Simplify right side
    1,365.28x = 2,091,159.74
  5. Step 5: Solve for x
    x = 2,091,159.74/1,365.28
  6. Step 6: Final answer
    x = 1,531.67

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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.