Home / 2,214.48-3,055.56-1,515.60

Finding the Fourth Proportional to 2,214.48, 3,055.56 and 1,515.60

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Solution

The fourth proportional to 2,214.48, 3,055.56 and 1,515.60 is: 2,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.48 : 3,055.56 = 1,515.60 : x
  2. Step 2: Convert to fraction form
    2,214.48/3,055.56 = 1,515.60/x
  3. Step 3: Cross multiply
    2,214.48x = 3,055.56 × 1,515.60
  4. Step 4: Simplify right side
    2,214.48x = 4,631,006.74
  5. Step 5: Solve for x
    x = 4,631,006.74/2,214.48
  6. Step 6: Final answer
    x = 2,091.24

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1.5x scale

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.