Home / 1,511.36-2,267.55-471.60

Finding the Fourth Proportional to 1,511.36, 2,267.55 and 471.60

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Solution

The fourth proportional to 1,511.36, 2,267.55 and 471.60 is: 707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.36 : 2,267.55 = 471.60 : x
  2. Step 2: Convert to fraction form
    1,511.36/2,267.55 = 471.60/x
  3. Step 3: Cross multiply
    1,511.36x = 2,267.55 × 471.60
  4. Step 4: Simplify right side
    1,511.36x = 1,069,376.58
  5. Step 5: Solve for x
    x = 1,069,376.58/1,511.36
  6. Step 6: Final answer
    x = 707.56

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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.