Home / 2,253.12-3,384.96-1,388.16

Finding the Fourth Proportional to 2,253.12, 3,384.96 and 1,388.16

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Solution

The fourth proportional to 2,253.12, 3,384.96 and 1,388.16 is: 2,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.12 : 3,384.96 = 1,388.16 : x
  2. Step 2: Convert to fraction form
    2,253.12/3,384.96 = 1,388.16/x
  3. Step 3: Cross multiply
    2,253.12x = 3,384.96 × 1,388.16
  4. Step 4: Simplify right side
    2,253.12x = 4,698,866.07
  5. Step 5: Solve for x
    x = 4,698,866.07/2,253.12
  6. Step 6: Final answer
    x = 2,085.49

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1.5x scale

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.