Home / 1,562.48-2,151.60-1,528.40

Finding the Fourth Proportional to 1,562.48, 2,151.60 and 1,528.40

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Solution

The fourth proportional to 1,562.48, 2,151.60 and 1,528.40 is: 2,104.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.48 : 2,151.60 = 1,528.40 : x
  2. Step 2: Convert to fraction form
    1,562.48/2,151.60 = 1,528.40/x
  3. Step 3: Cross multiply
    1,562.48x = 2,151.60 × 1,528.40
  4. Step 4: Simplify right side
    1,562.48x = 3,288,505.44
  5. Step 5: Solve for x
    x = 3,288,505.44/1,562.48
  6. Step 6: Final answer
    x = 2,104.67

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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.